Pwar Gyi Sayar
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Pwar Gyi Sayar's Discussions

Vibration Problem!! IMU

Started this discussion. Last reply by Andrew Whipple Feb 14, 2010. 11 Replies

Hi guys,I m having problem with vibration as i m using on heli. How do filter out IMU data with minimum compromise. Or is there a way to minimise the effect??I am using 6DOF IMU, here is the test…Continue

Tags: noise

Ardupilot Hardware related!

Started this discussion. Last reply by jasonshort Nov 4, 2009. 3 Replies

Hi everyone,I am a new student to this area, and there are so many questions.First of all, what is the purpose of AT45 on the board while ATmega328 is used as main controller here. Also what if i…Continue

 

Pwar Gyi Sayar's Page

Latest Activity

Andrew Whipple replied to Pwar Gyi Sayar's discussion Vibration Problem!! IMU
"what were your results with the IDG500 Dual 500 degree/sec?"
Feb 14, 2010
Gregg "Cabe" Bond replied to Pwar Gyi Sayar's discussion Vibration Problem!! IMU
"Thats pretty hard core."
Jan 25, 2010
Jawahar balaji replied to Pwar Gyi Sayar's discussion Vibration Problem!! IMU
"i think this may help http://vrhome.net/vassilis/"
Jan 25, 2010
Heinrich Mueller replied to Pwar Gyi Sayar's discussion Vibration Problem!! IMU
"I think they will work to. We are going to test them next weeks."
Jan 25, 2010
Morli replied to Pwar Gyi Sayar's discussion Vibration Problem!! IMU
"What about IDG500 Dual 500 degree/sec here , they seem to be cheaper here than ADXRS610 from same site"
Jan 2, 2010
Heinrich Mueller replied to Pwar Gyi Sayar's discussion Vibration Problem!! IMU
"Hello we have tested a lot of different rate sensors. It seems that the ADXRS610 have the best vibration immunity. The ST's sensors have an internal working frequency in the range of 4kHz. This is just the frequency that the rotors and motors…"
Jan 2, 2010
Pwar Gyi Sayar replied to Monroe's discussion AuduIMU Questions
"Hi all, I don't want to create unnecessary another topic. I just want to know a bit about IMU 6DOF razor (Red) from sparkfun, where it stated required 3.3V regulator. Not mentioned about Vrefs for gyro chips. Which I believe will require 1.23V…"
Dec 7, 2009
Morli replied to Pwar Gyi Sayar's discussion Vibration Problem!! IMU
"There you go Pyar, you got pretty much there is to do for vib issues unless you want change the beast under the hood. Good luck and feed us back with your results."
Dec 6, 2009

DeveloperRandy replied to Pwar Gyi Sayar's discussion Vibration Problem!! IMU
"Hey Pwar, This is the problem that everyone seems to hit when dealing with helicopters. I'm in the same boat and you can see some replies to my post on nearly the same subject although I'm using Spark Fun's…"
Dec 5, 2009
Pwar Gyi Sayar replied to Pwar Gyi Sayar's discussion Vibration Problem!! IMU
"Hi, I am using 6DOF RAZOR board. I managed to get full resolution with 3.3V so 1024 full scale on ArduPilot. Although it is a bit of wire track cutting and routing from here to there. This test is Half throttle motor speed and vibration is…"
Dec 5, 2009

Moderatorautomatik replied to Pwar Gyi Sayar's discussion Vibration Problem!! IMU
"Hi Pear, I think that you need to provide a bit more information : What's the magnitude of vibrations ( there is no y-axis scale ; perhaps you can edit/repost the picture). What is test setup ( is heli level on the ground with motor turned on…"
Dec 5, 2009
Morli replied to Pwar Gyi Sayar's discussion Vibration Problem!! IMU
"Any mechanical damping techniques applied?"
Dec 5, 2009
Pwar Gyi Sayar posted a discussion

Vibration Problem!! IMU

Hi guys,I m having problem with vibration as i m using on heli. How do filter out IMU data with minimum compromise. Or is there a way to minimise the effect??I am using 6DOF IMU, here is the test picRegardsPGSee More
Dec 5, 2009
11 Comments
Pwar Gyi Sayar replied to Darro Lin's discussion Where is the best place to connect extra 3.3v analog sensors to ArduPilot?
"Sorry........ miss understanding by me.... Chris!! I thought u meant It will damage IMU. So do you think my idea of working VCC at 3.3V is good idea?? Would it damage Ardupilot board?? what do you suggest?? regards PG"
Nov 15, 2009
Pwar Gyi Sayar replied to Darro Lin's discussion Where is the best place to connect extra 3.3v analog sensors to ArduPilot?
"Hi all, I have Razor 6DOF IMU 3.3V (no onboard regulator)to hook to Ardupilot. But i made 3.3 V regulator powered IMU. Then I hooked A0 -A5 to read analog signal. Like Chris mentioned, resolution is for 5V so almost half missing plus if 3.3V is…"
Nov 15, 2009

Developerjasonshort replied to Pwar Gyi Sayar's discussion Ardupilot Hardware related!
"ATiny code: http://diydrones.ning.com/profiles/blogs/new-failsafe-code-for-the You are correct about the three states. The tiny has a routine that looks for three values of PWM and set the lines high or low accordingly. Read the code to see the…"
Nov 4, 2009

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