IMU Message

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I was getting my Phantom ready for take-off today and saw a message something like "IMU Warming up". It was in the 80's here today and I have never seen that message. Is this normal on the Phantom 3?
 

KachemakDiver

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If the IMU was last calibrated in temperature higher than “in the 80’s”. I would suggest doing a recalibration when the drone can be in a cooler location for an hour or so. That way when it’s warmer outside, you will not have to wait as long for the IMU to warm up.
 

ianzone

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In the fridge for 15 min before imu calibration ...chill it for a bit,does no harm or cold area till you feel it cold below room temperature
 

dirkclod

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Da old cold IMU cal. You wouldn’t beleave the crap I get recommending that in Mavic forum. 😏I do it with my Mavics.
 
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The IMU has some precision accelerometer sensors in it. These need to be at a stable temperature to work accurately. Applying power to them for a few minutes before flight allows their internal temperature to stabilize and achieve full accuracy.
 
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Da old cold IMU cal. You wouldn’t beleave the crap I get recommending that in Mavic forum. 😏I do it with my Mavics.
Why? I don't get it. Do I need a Secret Decoder Ring?
 

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