Help checking vibration graph

[andycap]

Hi.

I wonder if some of you could have a look at my accel graph.  I have been trying to reduce vibration on my f450 flamewheel clone in preperation for the new software when it is released.

I have mounted the apm 2.5 on 4 1cm 15mm high blocks of soft neoprene on the lower frame plate.

Are these acceptable levels of vibration whilst 2ft off the ground in a hover?




Thanks for taking the time to look.

[andycap]

Nobody want to help ?

[peter_a]

Reading the arducopter page on logs , it says the vibration should be within +- 5
So yours look easy within that !!!!

[andycap]

Thanks for the reply, I was just unsure of the z axis showing -9 something on the log.

Andy.

[Gaza07]

I havent had a lot of time on the forum the past couple of days but as above below plus or minus 5 is good 
mine is fine a little bit over that 

[Tango21Delta]

Hi Andy,
The vibes look fine,  the -9 is due to the accelerometer reading the earths constant gravitational acceleration of 9.78 m/s so -9 on the z axis is fine.





The above are from my Q650 quad running APM 2.9.1b mounted on earplugs.

[andycap]

Thanks Tango21Delta.

I did not even think of the accel being able to pick up the earths rotational speed  I was thinking that it was going way over the recommended value with -9 and the deviations on the graph.

I am a happy camper now.

Andy.