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Re: [Paparazzi-devel] Reply to : Lisa/M Aspirin IMU Vibration Problems


From: Chris Wozny
Subject: Re: [Paparazzi-devel] Reply to : Lisa/M Aspirin IMU Vibration Problems
Date: Fri, 24 Feb 2012 12:28:34 -0700

Chris,

Unfortunately our aircraft is on the order of 100 grams and the
fuselage is only about 1 cm deep with the area of a credit card which
makes room for large mass and large size hard to come by. I think for
now I might try and mount it on the outside of the aircraft using
Christophe's method of four 4x4x10 mm pieces of packing-foam on the 4
corners of Lisa/M. But the best solution would be to check and see if
the props and motor is balanced and then isolating it with rubber
washers maybe.

- Woz

On Fri, Feb 24, 2012 at 1:55 AM, Chris <address@hidden> wrote:
> Hi.
> Have you tried to mechanically dampen the vibrations?
> I use 3 piece damper
>  The imu is mounted on top of a heavy iron piece which sits on top of soft
> foam which is glued on a flat
> piece of aluminum
>
>          .....................             IMU
>    _____________________
>    |____________________|       iron
>    =============
>    =============        FOAM
> -------------------------------------
> -------------------------------------  Aluminum sheet
>
> Chris



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