|Subject:||Re: [Paparazzi-devel] Rudder control and IR sensors.|
|Date:||Sat, 06 Nov 2010 13:02:01 -0700|
I see similar things with all my IR sensors. Things that help:
1. turn off all other ADC not used. If you are testing IR sensors only disable IR3,4,5 etc in the airframe file by deleting references to them.
2. Cover the IR sensors with many layers of foam. To get very close to 512 I had to wrap IRH in foam 3cm thick and put it inside another foam container.
3. IRV for some reason is hard to get neutral and seems dependent on the other sensors IR1 and IR2. It took me many permutations to get all to be close to 0 when no IR is registered (i.e. in foam in a foam container)
Here's my airframe values for my wing using those same sensors:
IR1 neutral 507, IR2 neutral 505, TOP neutral 500.
I have tried replacing the resistors on TOP to 1% with no difference. I have seen however as IR1 and IR2 neutrals are found then TOP requires less correction. It takes some time. Also let everything sit for about 2-4 minutes before you use the values to try and get the neutral.
Hope this helps.
On Nov 6, 2010, at 9:30 AM, Roman Nikitin wrote:
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