Calibration Offsets for 2 MinIMU-9 v5

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1

Hi,

I am working with two MinIMU-9 v5 to measure the angle of the ankle as the leg moves. Since the two IMUs are not level on startup, I have followed the advice in this link (https://forum.pololu.com/t/minimu-9-with-arduino-uno/6313/2) to remove the accelerometer offsets.

However, will this cause measurement issues later on since the offsets are not accounted for? How important are the accelerometer offset values?

Thanks.

2

Hello.

In our experience the accelerometer usually has pretty small offsets; you could try the approach in that linked topic to see if it works for you. If it does not, you might have to do something like determine the offsets beforehand with the accelerometers in a known position and hard code the values into your program.

-Jon