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Accelerometer data range and value roll over at acceleration > 10G

Is there any documentation on the maximum range of accelerometer data? It seems that once ~10G occurs in an axis the value for that axis rolls over.

I am using a fenix 7 and get accelerometer data in a callback at 50Hz (using the new higher rate capability in sdk 6.3.x)

10G is not that high and can easily be reached by just throwing ones arm up when jumping.

Is anyone experiencing this?

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  • in reply to flocsy🤠

    An average adult pitching baseball wearing a watch on the throwing arm will easily exceed 10Gs while a professional baseball player will easily exceed 20Gs.

    For reference, an average adult will throw a ball from 40mph (17m/s) to 65mph (29m/s) in a about 0.2sec to 0.3sec assuming constant acceleration (which underestimates the maximum acceleration some since it is unlikely to be constant in reality).

    This provides a range in Gs of (17/0.3)/9.81 =  5.8Gs to (29/0.2)/9.81 = 14.7Gs

    By comparison a profession baseball player throws at 90mph (40m/s) to 100mph (44m/s) in about 0.15sec which corresponds to 27Gs to 29Gs

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  • in reply to flocsy🤠

    An average adult pitching baseball wearing a watch on the throwing arm will easily exceed 10Gs while a professional baseball player will easily exceed 20Gs.

    For reference, an average adult will throw a ball from 40mph (17m/s) to 65mph (29m/s) in a about 0.2sec to 0.3sec assuming constant acceleration (which underestimates the maximum acceleration some since it is unlikely to be constant in reality).

    This provides a range in Gs of (17/0.3)/9.81 =  5.8Gs to (29/0.2)/9.81 = 14.7Gs

    By comparison a profession baseball player throws at 90mph (40m/s) to 100mph (44m/s) in about 0.15sec which corresponds to 27Gs to 29Gs

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