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xioTechnologies / Fusion

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Q: Influence of motion and external acceleration #158

Closed ib00 closed 1 month ago

ib00 commented 5 months ago

How does motion and external acceleration effect fusion algorithm?

For example, if I am on a bike pedaling, and the IMU sensor is on my leg, how does this bike motion/acceleration affect the algorithm? Do we need to change anything?

xioTechnologies commented 5 months ago

I suggest you monitor the acceleration recovery flag as an indication of algorithm health. If the flag is never (or rarely) set then the motion is not an issue.

ib00 commented 5 months ago

Thanks! What about extreme acceleration of the sensor? I have an application (think of it as running-like application) where sensor accelerates rapidly and then it comes to a complete stop when it hits the ground.

x-IMU3 sensor has a range up to 24g, but I have measured it to be much much higher.

xioTechnologies commented 5 months ago

As I said, I suggest you monitor the flag. If it is never set then the acceleration (extreme or otherwise) is not an issue. If you need to measure accelerations >24g then you should use the 200g accelerometer.