Heliproz
They have r/c heli, rc heli, rc helicopters, rc heli pilots, rc helicopter pilots, r/c helicopter pilots, rc helicopter pilot, helicopter pilots, R/C Helicopters, remote control helicopters, radio controlled helicopters, micro helicopters, gas helicopters, nitro helicopters, electric helicopters, raptor, best rc helicopter, pilot, pilots, remote helicopter, rc helicopters, RC HELICOPTERS, raptor helicopter, indoor helicopters, heliproz, helicopter rc, helicopter, model helicopter, Model Helicopters, gas helicopter, nitro helicopter, electric helicopter, gas model helicopters, nitro model helicopters, electric model helicopters, align helicopters, align, jr, jr helicopters, eflite, e-flite, eflite helicopters, trex, t-rex, model heli, model helis, mavrikk, mavrikk blades, miniature aircraft, miniature aircraft helicopters
They sell gas and electric RC Helicopters, parts, upgrades and accessories. We build and fly rc helicopters and can offer you much more support than the standard hobby shop. We carry all the best brands, Thunder Tiger, Raptor, JR, Hirobo, Kyosho, Miniature Aircraft, Heli-Max, Align, E-flight and Mavrikk Valu Brand just to name a few.
HeliProz Inc. is a full time R/C Heli Shop located in Billings, Montana - a state with NO SALES TAX. We are the biggest and best full-line heli shop on the planet. We work harder than anyone else to have all of the items we sell in stock and to get them shipped to you AS FAST as possible. We ship via United Parcel Service or USPS Priority Mail Service. On Phone orders- Priority Mail orders placed by 5PM EST and UPS orders placed by 6PM EST WILL SHIP THE SAME DAY! All Web Orders placed by 5PM EST ship same day. (We do not ship on weekends or Holidays).
Wednesday, January 11, 2012
eBay rc helicopter rc helicopter
eBay is the best place for buying rc helicopter rc helicopter. There are kinds of rc helicopter rc helicopter. There are many rc helicopter rc helicopter at eBay
Volitation 3.5 Channel Outdoor Metal Gyro RC Helicopter
Double Horse 9053 26" 3.5 ch RC Helicopter Shipped from USA
4 Channel 4CH 2.4GHz Remote Control Single Propeller RC Helicopter Gyro V911 RTF
RC Mini Helicopter S107 Gyro (WELL PACKED) Blue Color
There are no too many reviews for rc helicopter rc helicopter at eBay.
Volitation 3.5 Channel Outdoor Metal Gyro RC Helicopter
Double Horse 9053 26" 3.5 ch RC Helicopter Shipped from USA
4 Channel 4CH 2.4GHz Remote Control Single Propeller RC Helicopter Gyro V911 RTF
RC Mini Helicopter S107 Gyro (WELL PACKED) Blue Color
There are no too many reviews for rc helicopter rc helicopter at eBay.
Tuesday, January 10, 2012
HobbyIC
HobbyIC is locaded in Hong Kong, China.
HobbyIC prices are kept so low because of our direct link with factories from china. We will never go through a vendor or middle man, the savings are always passed on to the customer.
Being a low-profit organisation, hobbyIC is often unable to give further discuount on it's products, however we do price match all our products
FPV products from hobbyic
FPV & UAV
UAV Autopilot
FPV stabilizer
Telemetry and datalink
Wireless video link
Long Range Remote controle (LRS)
OSD for FPV
FPV video camera
Ground station
Antenna
Electronics
RC planes
UAV platform
FPV platform
3D sport RC plane
RC Glider
RC Scale plane
Quadrocopter
Brushless Motors
Speed controller ESC
Battery charger & Acc.
Lipo battery
RC Servos
Arduino electronics
CNC Hobby machines
Hardware & Tools
HobbyIC prices are kept so low because of our direct link with factories from china. We will never go through a vendor or middle man, the savings are always passed on to the customer.
Being a low-profit organisation, hobbyIC is often unable to give further discuount on it's products, however we do price match all our products
FPV products from hobbyic
FPV & UAV
UAV Autopilot
FPV stabilizer
Telemetry and datalink
Wireless video link
Long Range Remote controle (LRS)
OSD for FPV
FPV video camera
Ground station
Antenna
Electronics
RC planes
UAV platform
FPV platform
3D sport RC plane
RC Glider
RC Scale plane
Quadrocopter
Brushless Motors
Speed controller ESC
Battery charger & Acc.
Lipo battery
RC Servos
Arduino electronics
CNC Hobby machines
Hardware & Tools
UAV, FPV, and AP Projects
UAV, FPV, and AP Projects
UAV - Unmanned Aerial Vehicle. Anything that flies via remote control or autonomously. (No human pilot onboard).
FPV - First Person View. This is the common RC hobbyist term for flying your airplane via a real time video link from the aircraft's cockpit.
AP - Aerial Photography. This is the common RC hobbyist term for strapping a camera to your remote controlled aircraft.
FPV & UAV at hobbyic
you will find some of the best and most populare FPV & UAV products available. We have all from Video link to hi tech Autopilots and UAV platforms. So if you are going to build your own UAV or FPV project you came to the right place
UAV - Unmanned Aerial Vehicle. Anything that flies via remote control or autonomously. (No human pilot onboard).
FPV - First Person View. This is the common RC hobbyist term for flying your airplane via a real time video link from the aircraft's cockpit.
AP - Aerial Photography. This is the common RC hobbyist term for strapping a camera to your remote controlled aircraft.
FPV & UAV at hobbyic
you will find some of the best and most populare FPV & UAV products available. We have all from Video link to hi tech Autopilots and UAV platforms. So if you are going to build your own UAV or FPV project you came to the right place
Monday, January 9, 2012
Eagle Tree Systems - MicroPower E-Logger
Eagle Tree Systems - MicroPower E-Logger
Specifications
Logs pack current to 100 amps and voltage to 45 V
Accepts optional inexpensive sensors for up to two temps and RPM (only one temp when RPM is used)
Includes graphing software
Software displays and graphs Amps, Volts, Watts, mAh, temps, RPM and other parameters
Weighs about 0.5 ounces
Adjustable logging rate and lost list data compression for maximum logging time
Supports USB live mode
Firmware can be updated via the supplied software
Voltage resolution 0.1 V
Current resolution 0.1 amps
Current draw approximately 35 milliamps
Temperature range 0°F to 424°F
RPM range 100 RPM to 50,000+ RPM
Logging (sample) rate 1 to 10 samples per second
Measurements 57 mm x 28 mm x 13 mm
Recording time (depending on sample rate) 20 minutes to several hours
This in-flight data monitor has a number of measuring devices that can be plugged into it. By default the data monitor will record volts, Amps and Watts. With the addition of an RPM monitor (optical or hall effect) the device can record RPM measurements. Additionally two temperature sensors can also be used. Eagle Tree Systems have also just introduced an LCD display which can be plugged into this device for field measurements and display of data. The device itself connects to a PC using a USB cable supplied in the box. The box also contains a CD containing the software for downloading and displaying the recorded data from the data logger.
The logger has a number of different functions and the software included as a huge amount of tailoring capability. Therefore I will tackle this review a piece at a time. Initially I would like to take a look at the basic functionality and for most people the information they are most likely to want to record using this device.
Amps, Volts, Watts
Just plugging this device between your speed controller and the battery will allow it to record information about the power system in-flight. Generally this means recording the amps drawn by the motor, the voltage of the battery under that load and the product of volts and amps which is the number of watts (power) drawn by the motor.
This is the bread and butter of an in-flight data logger and this functionality must work extremely well and be simple to use. In this regard I was not disappointed. The software allows the data logger to start recording either after a certain peak amperage has been attained or after a set period of time. I tested both modes and found no issue with either. I preferred the timed option as the data logger on occasion recorded a large amp spike during connection and would start recording immediately. In timed mode this large spike was ignored and recording would start after two minutes or 30 seconds or whatever time period I specified in the configuration software.
Each time the data logger is connected it records a separate session until its memory is full. Even here there are options to either stop recording once the memory is full or alternatively continue recording, overwriting previously recorded data. My preference was to stop recording once the memory buffer was full. One thing to remember with this data logger is that you have to to manually clear down the memory once you have downloaded the data. If you do not do so the data stays on the device and if you have set options to stop recording when the memory buffer is full then you can accidentally fail to record a flight due to lack of memory. Below is an example graph showing Amps & Volts from a test flight in a Cenutry Swift. Below this is the chart from the same flight showing Watts.
The in-flight logger comes with a number of options with regard to monitoring RPM. The first one of these that I tried was the optical RPM sensor. This sensor requires that you pointed at a rotating object which is coloured half black and half white. Finding something that I could colour in this way was something of a difficulty. I eventually settled on colouring the mast locking collar as I couldn't find anything else suitable that I could also get the sensor close to in order to get the data feed. As it turned out this was only partially successful in flight, when I was testing this I would get dropouts in the signal. After a lot of trying to make this work I decided that optical RPM monitoring properly wasn't a good methodology on helicopters where you are very limited in what you can use to get the data feed.
I then moved onto the more common hall effect the type sensor. This is where you place a magnet on the main gear or somewhere similar and the sensor is placed just above the magnet and senses it passing. I mounted the magnet on the side of the T-Rex 600 main gear and then made up a little bracket to hold the sensor just above where the magnet would pass. The sensor is somewhat unusual in that it has to be mounted sideways on to the magnet rather than pointing the end of the sensor at the magnet. All of the magnets provided with the sensor have been marked with a red line to show which way up they must be mounted. The sensor itself has writing on one side and nothing on the other, you must mount the sensor such that the writing is facing away from the magnet and that the red line on the magnet is facing the sensor. Again this is somewhat unusual as usually sensors of this type are not sensitive to which way up the magnet is mounted.
Having managed to find a suitable place to mount the magnet and position the sensor on its mounting bracket I then tested in the hope that this time I would not suffer any dropouts in the signal. I was not disappointed and now had a reliable RPM sensor. In helicopter applications this is all that is required on top of volts and amps to get good data on how a motor is performing.
Pictures of the magnetic sensor and the mounting on the T-Rex 600 can be seen below.
##
Lastly Eagle Tree Systems are shortly to make available a new type of sensor which reads the motor pulses to the brushless motor and calculates RPM directly from the motor. This will be very interesting as typically on helicopters it can be hard to find a mounting position for sensors. Directly reading RPM off of the motor removes this problem of finding a way to read the RPM off of a rotating part. I will review this new sensor as an addition to this review once it is available.
A picture of the new sensor can be seen below.
Temperature
Temperature monitoring can also be performed with the e-logger. Two temperature monitors can be connected at once, one to the temperature port and the other to the RPM port. Obviously with two temperature sensors active RPM monitoring can not be used, however, with just one temperature sensor RPM can also be sensed. The temperature monitor is a straightforward sensor on the end of a servo cable which you tape onto the item for which you want to monitor the temperature. The markings on the e-logger show that the temperature monitor must be connected in a particular way but mine only worked when plugged in the opposite way round to the way that is illustrated.
Watts / Cumulative mAh
Software
The software supplied with this device is the same software utilised for the much more comprehensive standard in flight logger and therefore there are many more options in the software than the MicroPower logger can support. This does make the software quite complicated in that there are a lots of options which do not apply to the MicroPower logger. However, there is also the advantage in that the software is extremely comprehensive in the function that it does provide and pretty much everything is configurable. This is in stark contrast to the BNB data logger which does have quite basic software in comparison.
I will run through some of the software options and screens below but I do not intend to cover everything as the software has a huge number of functions and different graph types.
On top of having very comprehensive software to deal with in-flight data the software also supports live data mode. In this mode the MicroPower logger can be directly connected to a computer and provide real-time information. This is very similar to the kind of functionality that the Medusa Power Analyser Pro provides for bench testing type activities. The MicroPower logger therefore can serve in two regards, one as an in-flight data logger and the other as a bench testing "live" data logger.
Below is a picture of the front screen of the software and I have labeled various parts of this (in blue) for explanation :
The area labeled (1) is the main playback controls. These controls allow you to play through the currently loaded in flight data log in real-time. All of the dials and electronic readouts will display the various recorded values as the loaded file is played through.
The area labeled (2) is the time readout. This displays how far in hours, minutes and seconds you are into the currently loaded file.
The area labeled (3) is where you can download from the e-logger, load a previously saved recorded flight or alternatively put the application into live mode. In live mode the application displays the current data feeds from the connected e-logger.
The area labeled (4) is where all the data displays are situated. These are configurable and various displays can be placed in this area. The menu contains an option to configure the data displays and when this is selected the dialog box shown below is displayed. You can then select which readouts you would like on your primary interface.
The main menu also contains an option to configure the e-logger in terms of what parameters it will record when it is activated. The e-logger has to be connected in order for this dialog box to display. The dialog box warns that the more options you select the lower the time it will record. It is important to only select the items you wish to record as the e-logger will record data whether you connect the appropriate sensor or not.
If you have mounted and connected an RPM sensor then one of the activities that needs to be completed is calibrating the motor RPM. This calibration is used to set how many pulses on the sensor will equate to a single revolution recorded on the e-logger. If you have only mounted one magnet (as an example) for the hall effect sensor then the correct value to place in the field is 2.
The e-logger software also allows you to calibrate it's voltage and amperage settings. The way this works is that you measure in parallel a constant load voltage and amperage using a multimeter. Having done this the value recorded by the e-logger is updated with the values recorded on the multimeter. This is then used to calibrate the in-flight data logger and should provide for more accurate readings.
Another menu option is the recorder capture rate. This can be set at various values. The faster you set the sample rate the less time the recorder will be able to record data. In an application such as radio control helicopters I set the sample rate as fast as it could go. Which is 10 samples per second.
One of the recent additions to the Micro Power e-logger is the option to add an external LCD panel. This allows the device to provide real-time feedback at the flying field rather than having to wait to get home and connect to a computer to download the recorded data. The dialog box below allows you to configure this external LCD panel to display the data that you would like to see at the field. TrexTuning will also be reviewing this add-on at a later date and updating this review at that time.
Having downloaded a flight recorded on the data logger the normal activity is to produce a graph of the results. These graphs are frequently seen on forums and web sites to show how a battery pack or motor performs in various test conditions or in-flight. TrexTuning has various graphs of this nature within the motor tests published on the site. Graphing software is important to allow a quick assessment of the downloaded data.
One of the limitations with the BNB DPR-100 is that it does not have very comprehensive graphing software. Whilst the software with the DPR-100 is adequate it is not comprehensive. The Micro Power software is at the opposite end of the spectrum. The graphing software is incredibly comprehensive and there are hundreds of options to configure the way your data displays. I have no intention of trying to explain all of the graphing capabilities within this review. What I have done is taken some of the dialog boxes and reproduce them below to give some idea of the possibilities.
Of course once you have created your graph it is important to be able to extract that data and export it to a graphic file. This is one of the options that was not present in the BNB DPR-100 software and I found myself having to use screen capture software in order to produce graphs for the web. The MicroPower software has a comprehensive export facility that will export to various different graphics file formats and also allows you to set the size of the exported graphic in pixels.
As an example of the configuration you can do, here is a graph with the colouring way off from the defaults :
Using the MicroPower e-logger
Using the data logger is extremely straightforward and easy to do using the comprehensive software. Initially you must select what data you want the device to collect. Then if you are monitoring for RPM a suitable place needs to be found for the magnet and sensor. The software then must be configured for recording the RPM correctly based on how many magnets you have mounted. Lastly you must configure how you want the data logger to initialise. This can be at a certain threshold value on one of the data feeds or alternatively after a set period of time.
At the field you just connect the data logger inline between the battery and speed controller having already connected any extra sensors for which you want to gather data. It is then a simple case of conducting your flight and then disconnecting the data logger at the end of the flight.
The data logger and can then be connected via its USB cable to a PC. Once the data logger has been detected you hit download data. This initialise is the software with all of the data from the recorded flight. The data logger has an ability to collect several flights and they will be recorded separately as sessions. In the software you can select between the different sessions to display in graph form. Any downloaded flight can be saved for processing later or for historical or trends analysis reasons.
I found the software relatively easy to use, although the graphing functions are quite complex and took me some time to understand.
Pros
Good build quality
Compact & easy to use
Great features & add on sensors / devices
Most comprehensive feature set on the market in this price bracket
Excellent Software
Cons
Software quite complex to learn
Optical RPM sensor was not easy to mount and proved difficult to get working on a heli
Sensors sometimes need connecting in a non-intuitive way so careful instruction reading is required
Conclusion
Having reviewed the BNB DPR -100 recently it was interesting to take a look at another offering from a different manufacturer. Whilst essentially these devices provide approximately the same functionality the Micro Power e-logger is far more comprehensive in the number of sensors that can be attached to it and in the way the recorded data can be manipulated for display. The BNB DPR-100 does have a much higher sampling rate and this may be a factor in determining which device is most suitable. Certainly in model helicopters the Micro Power sample rate is plenty high enough to provide accurate data.
Eagle Tree Systems continue to develop new sensors and additional functionality for their in-flight monitoring and as such this device is continuously being improved. Apart from a few minor hiccups in getting the RPM monitoring to work the Micro Power offering has been faultless in operation.
Given the two offerings in this particular market that I have looked at it is the Micro Power that offers the greatest functionality and the most comprehensive software. Therefore if I were to pick between these two I would go for the Micro Power e-logger. If you are looking for an in-flight data monitoring solution and then this device comes highly recommended.
Specifications
Logs pack current to 100 amps and voltage to 45 V
Accepts optional inexpensive sensors for up to two temps and RPM (only one temp when RPM is used)
Includes graphing software
Software displays and graphs Amps, Volts, Watts, mAh, temps, RPM and other parameters
Weighs about 0.5 ounces
Adjustable logging rate and lost list data compression for maximum logging time
Supports USB live mode
Firmware can be updated via the supplied software
Voltage resolution 0.1 V
Current resolution 0.1 amps
Current draw approximately 35 milliamps
Temperature range 0°F to 424°F
RPM range 100 RPM to 50,000+ RPM
Logging (sample) rate 1 to 10 samples per second
Measurements 57 mm x 28 mm x 13 mm
Recording time (depending on sample rate) 20 minutes to several hours
This in-flight data monitor has a number of measuring devices that can be plugged into it. By default the data monitor will record volts, Amps and Watts. With the addition of an RPM monitor (optical or hall effect) the device can record RPM measurements. Additionally two temperature sensors can also be used. Eagle Tree Systems have also just introduced an LCD display which can be plugged into this device for field measurements and display of data. The device itself connects to a PC using a USB cable supplied in the box. The box also contains a CD containing the software for downloading and displaying the recorded data from the data logger.
The logger has a number of different functions and the software included as a huge amount of tailoring capability. Therefore I will tackle this review a piece at a time. Initially I would like to take a look at the basic functionality and for most people the information they are most likely to want to record using this device.
Amps, Volts, Watts
Just plugging this device between your speed controller and the battery will allow it to record information about the power system in-flight. Generally this means recording the amps drawn by the motor, the voltage of the battery under that load and the product of volts and amps which is the number of watts (power) drawn by the motor.
This is the bread and butter of an in-flight data logger and this functionality must work extremely well and be simple to use. In this regard I was not disappointed. The software allows the data logger to start recording either after a certain peak amperage has been attained or after a set period of time. I tested both modes and found no issue with either. I preferred the timed option as the data logger on occasion recorded a large amp spike during connection and would start recording immediately. In timed mode this large spike was ignored and recording would start after two minutes or 30 seconds or whatever time period I specified in the configuration software.
Each time the data logger is connected it records a separate session until its memory is full. Even here there are options to either stop recording once the memory is full or alternatively continue recording, overwriting previously recorded data. My preference was to stop recording once the memory buffer was full. One thing to remember with this data logger is that you have to to manually clear down the memory once you have downloaded the data. If you do not do so the data stays on the device and if you have set options to stop recording when the memory buffer is full then you can accidentally fail to record a flight due to lack of memory. Below is an example graph showing Amps & Volts from a test flight in a Cenutry Swift. Below this is the chart from the same flight showing Watts.
The in-flight logger comes with a number of options with regard to monitoring RPM. The first one of these that I tried was the optical RPM sensor. This sensor requires that you pointed at a rotating object which is coloured half black and half white. Finding something that I could colour in this way was something of a difficulty. I eventually settled on colouring the mast locking collar as I couldn't find anything else suitable that I could also get the sensor close to in order to get the data feed. As it turned out this was only partially successful in flight, when I was testing this I would get dropouts in the signal. After a lot of trying to make this work I decided that optical RPM monitoring properly wasn't a good methodology on helicopters where you are very limited in what you can use to get the data feed.
I then moved onto the more common hall effect the type sensor. This is where you place a magnet on the main gear or somewhere similar and the sensor is placed just above the magnet and senses it passing. I mounted the magnet on the side of the T-Rex 600 main gear and then made up a little bracket to hold the sensor just above where the magnet would pass. The sensor is somewhat unusual in that it has to be mounted sideways on to the magnet rather than pointing the end of the sensor at the magnet. All of the magnets provided with the sensor have been marked with a red line to show which way up they must be mounted. The sensor itself has writing on one side and nothing on the other, you must mount the sensor such that the writing is facing away from the magnet and that the red line on the magnet is facing the sensor. Again this is somewhat unusual as usually sensors of this type are not sensitive to which way up the magnet is mounted.
Having managed to find a suitable place to mount the magnet and position the sensor on its mounting bracket I then tested in the hope that this time I would not suffer any dropouts in the signal. I was not disappointed and now had a reliable RPM sensor. In helicopter applications this is all that is required on top of volts and amps to get good data on how a motor is performing.
Pictures of the magnetic sensor and the mounting on the T-Rex 600 can be seen below.
##
Lastly Eagle Tree Systems are shortly to make available a new type of sensor which reads the motor pulses to the brushless motor and calculates RPM directly from the motor. This will be very interesting as typically on helicopters it can be hard to find a mounting position for sensors. Directly reading RPM off of the motor removes this problem of finding a way to read the RPM off of a rotating part. I will review this new sensor as an addition to this review once it is available.
A picture of the new sensor can be seen below.
Temperature
Temperature monitoring can also be performed with the e-logger. Two temperature monitors can be connected at once, one to the temperature port and the other to the RPM port. Obviously with two temperature sensors active RPM monitoring can not be used, however, with just one temperature sensor RPM can also be sensed. The temperature monitor is a straightforward sensor on the end of a servo cable which you tape onto the item for which you want to monitor the temperature. The markings on the e-logger show that the temperature monitor must be connected in a particular way but mine only worked when plugged in the opposite way round to the way that is illustrated.
Watts / Cumulative mAh
Software
The software supplied with this device is the same software utilised for the much more comprehensive standard in flight logger and therefore there are many more options in the software than the MicroPower logger can support. This does make the software quite complicated in that there are a lots of options which do not apply to the MicroPower logger. However, there is also the advantage in that the software is extremely comprehensive in the function that it does provide and pretty much everything is configurable. This is in stark contrast to the BNB data logger which does have quite basic software in comparison.
I will run through some of the software options and screens below but I do not intend to cover everything as the software has a huge number of functions and different graph types.
On top of having very comprehensive software to deal with in-flight data the software also supports live data mode. In this mode the MicroPower logger can be directly connected to a computer and provide real-time information. This is very similar to the kind of functionality that the Medusa Power Analyser Pro provides for bench testing type activities. The MicroPower logger therefore can serve in two regards, one as an in-flight data logger and the other as a bench testing "live" data logger.
Below is a picture of the front screen of the software and I have labeled various parts of this (in blue) for explanation :
The area labeled (1) is the main playback controls. These controls allow you to play through the currently loaded in flight data log in real-time. All of the dials and electronic readouts will display the various recorded values as the loaded file is played through.
The area labeled (2) is the time readout. This displays how far in hours, minutes and seconds you are into the currently loaded file.
The area labeled (3) is where you can download from the e-logger, load a previously saved recorded flight or alternatively put the application into live mode. In live mode the application displays the current data feeds from the connected e-logger.
The area labeled (4) is where all the data displays are situated. These are configurable and various displays can be placed in this area. The menu contains an option to configure the data displays and when this is selected the dialog box shown below is displayed. You can then select which readouts you would like on your primary interface.
The main menu also contains an option to configure the e-logger in terms of what parameters it will record when it is activated. The e-logger has to be connected in order for this dialog box to display. The dialog box warns that the more options you select the lower the time it will record. It is important to only select the items you wish to record as the e-logger will record data whether you connect the appropriate sensor or not.
If you have mounted and connected an RPM sensor then one of the activities that needs to be completed is calibrating the motor RPM. This calibration is used to set how many pulses on the sensor will equate to a single revolution recorded on the e-logger. If you have only mounted one magnet (as an example) for the hall effect sensor then the correct value to place in the field is 2.
The e-logger software also allows you to calibrate it's voltage and amperage settings. The way this works is that you measure in parallel a constant load voltage and amperage using a multimeter. Having done this the value recorded by the e-logger is updated with the values recorded on the multimeter. This is then used to calibrate the in-flight data logger and should provide for more accurate readings.
Another menu option is the recorder capture rate. This can be set at various values. The faster you set the sample rate the less time the recorder will be able to record data. In an application such as radio control helicopters I set the sample rate as fast as it could go. Which is 10 samples per second.
One of the recent additions to the Micro Power e-logger is the option to add an external LCD panel. This allows the device to provide real-time feedback at the flying field rather than having to wait to get home and connect to a computer to download the recorded data. The dialog box below allows you to configure this external LCD panel to display the data that you would like to see at the field. TrexTuning will also be reviewing this add-on at a later date and updating this review at that time.
Having downloaded a flight recorded on the data logger the normal activity is to produce a graph of the results. These graphs are frequently seen on forums and web sites to show how a battery pack or motor performs in various test conditions or in-flight. TrexTuning has various graphs of this nature within the motor tests published on the site. Graphing software is important to allow a quick assessment of the downloaded data.
One of the limitations with the BNB DPR-100 is that it does not have very comprehensive graphing software. Whilst the software with the DPR-100 is adequate it is not comprehensive. The Micro Power software is at the opposite end of the spectrum. The graphing software is incredibly comprehensive and there are hundreds of options to configure the way your data displays. I have no intention of trying to explain all of the graphing capabilities within this review. What I have done is taken some of the dialog boxes and reproduce them below to give some idea of the possibilities.
Of course once you have created your graph it is important to be able to extract that data and export it to a graphic file. This is one of the options that was not present in the BNB DPR-100 software and I found myself having to use screen capture software in order to produce graphs for the web. The MicroPower software has a comprehensive export facility that will export to various different graphics file formats and also allows you to set the size of the exported graphic in pixels.
As an example of the configuration you can do, here is a graph with the colouring way off from the defaults :
Using the MicroPower e-logger
Using the data logger is extremely straightforward and easy to do using the comprehensive software. Initially you must select what data you want the device to collect. Then if you are monitoring for RPM a suitable place needs to be found for the magnet and sensor. The software then must be configured for recording the RPM correctly based on how many magnets you have mounted. Lastly you must configure how you want the data logger to initialise. This can be at a certain threshold value on one of the data feeds or alternatively after a set period of time.
At the field you just connect the data logger inline between the battery and speed controller having already connected any extra sensors for which you want to gather data. It is then a simple case of conducting your flight and then disconnecting the data logger at the end of the flight.
The data logger and can then be connected via its USB cable to a PC. Once the data logger has been detected you hit download data. This initialise is the software with all of the data from the recorded flight. The data logger has an ability to collect several flights and they will be recorded separately as sessions. In the software you can select between the different sessions to display in graph form. Any downloaded flight can be saved for processing later or for historical or trends analysis reasons.
I found the software relatively easy to use, although the graphing functions are quite complex and took me some time to understand.
Pros
Good build quality
Compact & easy to use
Great features & add on sensors / devices
Most comprehensive feature set on the market in this price bracket
Excellent Software
Cons
Software quite complex to learn
Optical RPM sensor was not easy to mount and proved difficult to get working on a heli
Sensors sometimes need connecting in a non-intuitive way so careful instruction reading is required
Conclusion
Having reviewed the BNB DPR -100 recently it was interesting to take a look at another offering from a different manufacturer. Whilst essentially these devices provide approximately the same functionality the Micro Power e-logger is far more comprehensive in the number of sensors that can be attached to it and in the way the recorded data can be manipulated for display. The BNB DPR-100 does have a much higher sampling rate and this may be a factor in determining which device is most suitable. Certainly in model helicopters the Micro Power sample rate is plenty high enough to provide accurate data.
Eagle Tree Systems continue to develop new sensors and additional functionality for their in-flight monitoring and as such this device is continuously being improved. Apart from a few minor hiccups in getting the RPM monitoring to work the Micro Power offering has been faultless in operation.
Given the two offerings in this particular market that I have looked at it is the Micro Power that offers the greatest functionality and the most comprehensive software. Therefore if I were to pick between these two I would go for the Micro Power e-logger. If you are looking for an in-flight data monitoring solution and then this device comes highly recommended.
Eagle Tree Systems eLogger V3 Review
Eagle Tree Systems eLogger V3 Review
The eLogger V3 from Eagle Tree Systems is an in-flight data logger which continuously records volts, amps, watts, and milliamp-hours to enable pilots to analyze the performance of their electric power systems. In addition, it supports a wide variety of optional sensors to record altitude, airspeed, component temperatures, RPM, and more.
The eLogger is a small device which continuously records these values to its internal memory. Once back on the ground, these log files can be downloaded to a computer for graphing and analysis. The device can also be used to display live values for all of its sensors, which means it doubles as a wattmeter on the bench.
Eagle Tree Systems provided me with the eLogger, a PowerPanel LCD display, two different temperature sensors, and an RPM sensor for brushless motors. All of these can be connected simultaneously, and still have room for a third temperature sensor and either a second RPM sensor or a throttle sensor. In addition, there is an altimeter, an airspeed sensor, a servo current meter, and a GPS module available. The variety of sensors and the ability to use so many of them at the same time is one of the major strengths of this product. The eLogger competes with the Oracle Data Recorder from Medusa Research and the eFlightWatt Data Logger from Mile High Wings.
Besides acting as a simple wattmeter, all of the attached sensors can display their live values on the PowerPanel, which is very configurable. From the PC software, you can choose which parameters are displayed and where, give them customized three letter names, and set up multiple pages of information. For example, eight parameters can be spread over two pages, which alternate every two seconds.
Even better, there's an option to show the maximum values attained since power on when the current is zero. This is useful both on the bench to check peak amps, as well as at the field after a flight. The latter is particularly useful if you want to try out different props but not bring a laptop out to your flying site. On larger models the LCD could be mounted in the fuselage or under the canopy to make it visible. For smaller planes or helis, the PowerPanel is best kept on the ground, and connected when needed.
The desktop software can be used in live mode, where all parameters are displayed in real time on large readouts, and optionally recorded. There's even a live mode for the graphing feature, which is extremely cool (although perhaps less useful than the gauges and digital displays).
Next I moved on to recording in-flight data. The Data Recorder application is used to configure the logger's behavior, which is retained in the absence of power. You have a choice of which parameters to record, and how often to log them (from 1 to 10 samples per second). These choices affect the total logging time available, as does the data compression used internally. Eagle Tree state a minimum of 45 minutes of recording time. I set up the logger to record volts, amps, RPM, and one temperature value, sampling 4 times per second. In this configuration I'd estimate 2.5 hours of data can be stored.
The eLogger V3 from Eagle Tree Systems is an in-flight data logger which continuously records volts, amps, watts, and milliamp-hours to enable pilots to analyze the performance of their electric power systems. In addition, it supports a wide variety of optional sensors to record altitude, airspeed, component temperatures, RPM, and more.
The eLogger is a small device which continuously records these values to its internal memory. Once back on the ground, these log files can be downloaded to a computer for graphing and analysis. The device can also be used to display live values for all of its sensors, which means it doubles as a wattmeter on the bench.
Eagle Tree Systems provided me with the eLogger, a PowerPanel LCD display, two different temperature sensors, and an RPM sensor for brushless motors. All of these can be connected simultaneously, and still have room for a third temperature sensor and either a second RPM sensor or a throttle sensor. In addition, there is an altimeter, an airspeed sensor, a servo current meter, and a GPS module available. The variety of sensors and the ability to use so many of them at the same time is one of the major strengths of this product. The eLogger competes with the Oracle Data Recorder from Medusa Research and the eFlightWatt Data Logger from Mile High Wings.
Besides acting as a simple wattmeter, all of the attached sensors can display their live values on the PowerPanel, which is very configurable. From the PC software, you can choose which parameters are displayed and where, give them customized three letter names, and set up multiple pages of information. For example, eight parameters can be spread over two pages, which alternate every two seconds.
Even better, there's an option to show the maximum values attained since power on when the current is zero. This is useful both on the bench to check peak amps, as well as at the field after a flight. The latter is particularly useful if you want to try out different props but not bring a laptop out to your flying site. On larger models the LCD could be mounted in the fuselage or under the canopy to make it visible. For smaller planes or helis, the PowerPanel is best kept on the ground, and connected when needed.
The desktop software can be used in live mode, where all parameters are displayed in real time on large readouts, and optionally recorded. There's even a live mode for the graphing feature, which is extremely cool (although perhaps less useful than the gauges and digital displays).
Next I moved on to recording in-flight data. The Data Recorder application is used to configure the logger's behavior, which is retained in the absence of power. You have a choice of which parameters to record, and how often to log them (from 1 to 10 samples per second). These choices affect the total logging time available, as does the data compression used internally. Eagle Tree state a minimum of 45 minutes of recording time. I set up the logger to record volts, amps, RPM, and one temperature value, sampling 4 times per second. In this configuration I'd estimate 2.5 hours of data can be stored.
Wednesday, January 4, 2012
FPV OSD・UAVモジュール
FPV OSD・UAVモジュール
2.4GHz, 5.8GHz, BECなどの電源関連, CCDカメラ, CMOSカメラ, Camera Lenses, DC-DCコンバーター, DragonLabs, DragonLink, DragonOSD, FPV OSD・UAVモジュール, FPV ゴーグル, FPV ビデオキャプチャー, FPV ビデオリンク, FPV モニター, FPV モニター・ゴーグル・ビデオキャプチャー, FPV 地上装備, FPV-Japan, FPV用カメラ, FeiyuTech, OSD・UAVパーツ, OSD・UAVモジュール, PPMモジュール, RC送受信, RC送受信機とPPMモジュール, UBEC/BEC, お勧め商品, アンテナ類, ケーブルとコネクター類, サーボ, バッテリーと充電器, パーツ, モーター, リニアレギュレーター, 全商品, 商品ジャンル, 国内メーカージェット機, 接着剤・テープ・磁石, 新商品, 空撮用HDビデオカメラ, 電子パーツ, 飛行機
DOSD用気圧高度計
DOSD-STL-BARO
DOSD用気圧高度計が新登場しました。
DOSD本体に接続するだけで約３０センチ（１フィート）の正確さで高度を表示することが可能です。
高度のほかに外気温も表示されます。設定不要の言葉どおり、プラグ＆プレイです。
DragonLabs DOSD+ v2
晴れて、海外FPV界の中で高い評価を得続けているDragonLabs DOSD+ v2が今年一月末を目処に日本上陸！
画面上に電圧、電流等のみならず、GPSを搭載していれば、高度・速度・進行方向・離陸点からの距離・離陸点の方向などの表示の他に、RTH機能と言われる、プロポの操縦電波が途絶えてしまった場合に離陸点に向かって自動操縦を行うセーフティー機能搭載です。
またパソコン側で事前にセットすれば、Waypointナビゲーションも可能です。
Feiyutech FY-20A
FY-20Aは杯盤となり、引き続きFY-30Aに切り替わります。三次元ジャイロ及び加速センサーの使用により、飛行中の機体アティチュードを保ってくれる優れものです。
風にあおれても進行方向、高度等を厳しく制御してくれますので非常に安全且つ安定した飛行が可能です（言われるフライバイワイヤ）。
しかしRTH機能はついていませんので万が一プロポの操縦電波が途絶えてしまったら、FY-30Aを載せた機体は電池がなくなるまで、落ちてくることなく、遠くへと飛んでいてしまいますので仕組みおよび用材を理解した上ごご使用ください。
DOSD+v2 FPVプロ・セットはGPS搭載OSD、小型CCDカメラ、ビデオリンク等、全てのパーツを揃えた玄人思考FPVセットです。
初めてFPVを考えている方のための最低限のパーツ組み合わせでもあります。
画面上に電圧、電流等のみならず、GPSによる速度・高度・進行方向・離陸点からの距離・離陸点の方向の表示の他、RTH機能と言われる、プロポの操縦電波が途絶えてしまった場合に離陸地点に向かって自動操縦に切り替わるセーフティー機能搭載です。
また、パソコンに接続すれば、事前に書き込んだWaypointナビゲーションも可能です。
2.4GHz, 5.8GHz, BECなどの電源関連, CCDカメラ, CMOSカメラ, Camera Lenses, DC-DCコンバーター, DragonLabs, DragonLink, DragonOSD, FPV OSD・UAVモジュール, FPV ゴーグル, FPV ビデオキャプチャー, FPV ビデオリンク, FPV モニター, FPV モニター・ゴーグル・ビデオキャプチャー, FPV 地上装備, FPV-Japan, FPV用カメラ, FeiyuTech, OSD・UAVパーツ, OSD・UAVモジュール, PPMモジュール, RC送受信, RC送受信機とPPMモジュール, UBEC/BEC, お勧め商品, アンテナ類, ケーブルとコネクター類, サーボ, バッテリーと充電器, パーツ, モーター, リニアレギュレーター, 全商品, 商品ジャンル, 国内メーカージェット機, 接着剤・テープ・磁石, 新商品, 空撮用HDビデオカメラ, 電子パーツ, 飛行機
DOSD用気圧高度計
DOSD-STL-BARO
DOSD用気圧高度計が新登場しました。
DOSD本体に接続するだけで約３０センチ（１フィート）の正確さで高度を表示することが可能です。
高度のほかに外気温も表示されます。設定不要の言葉どおり、プラグ＆プレイです。
DragonLabs DOSD+ v2
晴れて、海外FPV界の中で高い評価を得続けているDragonLabs DOSD+ v2が今年一月末を目処に日本上陸！
画面上に電圧、電流等のみならず、GPSを搭載していれば、高度・速度・進行方向・離陸点からの距離・離陸点の方向などの表示の他に、RTH機能と言われる、プロポの操縦電波が途絶えてしまった場合に離陸点に向かって自動操縦を行うセーフティー機能搭載です。
またパソコン側で事前にセットすれば、Waypointナビゲーションも可能です。
Feiyutech FY-20A
FY-20Aは杯盤となり、引き続きFY-30Aに切り替わります。三次元ジャイロ及び加速センサーの使用により、飛行中の機体アティチュードを保ってくれる優れものです。
風にあおれても進行方向、高度等を厳しく制御してくれますので非常に安全且つ安定した飛行が可能です（言われるフライバイワイヤ）。
しかしRTH機能はついていませんので万が一プロポの操縦電波が途絶えてしまったら、FY-30Aを載せた機体は電池がなくなるまで、落ちてくることなく、遠くへと飛んでいてしまいますので仕組みおよび用材を理解した上ごご使用ください。
DOSD+v2 FPVプロ・セットはGPS搭載OSD、小型CCDカメラ、ビデオリンク等、全てのパーツを揃えた玄人思考FPVセットです。
初めてFPVを考えている方のための最低限のパーツ組み合わせでもあります。
画面上に電圧、電流等のみならず、GPSによる速度・高度・進行方向・離陸点からの距離・離陸点の方向の表示の他、RTH機能と言われる、プロポの操縦電波が途絶えてしまった場合に離陸地点に向かって自動操縦に切り替わるセーフティー機能搭載です。
また、パソコンに接続すれば、事前に書き込んだWaypointナビゲーションも可能です。
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