Go Back  RCU Forums > RC Helicopters > Multi Rotor Helicopters
problem with noisy pressure near ground >

problem with noisy pressure near ground

Notices
Multi Rotor Helicopters Discuss Multi rotor RC Helicopter's here!

problem with noisy pressure near ground

Old 06-29-2016, 07:25 PM
  #1  
Junior Member
Thread Starter
 
Join Date: Dec 2005
Location: Lawrence, KS
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
Talking problem with noisy pressure near ground

I'm making a quadcopter(wheelbase 1200mm) with 4 30" props(30x8).
FC I'm using is DJI's NAZA m V2 and it's been working well in most case except near ground.
The problem is fluctuating altitude near ground(about 1 meter or less). Once the a/c goes up, everything works well.
I thought it is because of the ground effect but the a/c fly very well in certain configuration especially when frame cover is opened.
The frame is a rectangular box(250x250x50mm) and it is mostly closed except there is 13mm hole where wires go thru in the bottom and the top is covered by a plastic plate fastened by 4 screws.

I've tested so many configurations and it only works when the cover is opened.
I tried to lift the cover up a bit about 5mm and it is not working.

To check what's going on, iOSD was used.
I was expecting pressure is a key factor and the graph shows that the pressure fluctuate about 1.5~2 m.
I wish I can filter that signal but there is no way that I can control the pressure sensor in my knowledge.

Do you have any comments on this problem?
Thank you for reading this thread.

[ATTACH]2170439[/IMG]
Attached Thumbnails Click image for larger version

Name:	press.JPG
Views:	41
Size:	387.1 KB
ID:	2170439  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are On


Thread Tools
Search this Thread

Contact Us - Manage Preferences Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.