is spatial 3/3/3 appropriate for sensing body movements?

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gaojie
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is spatial 3/3/3 appropriate for sensing body movements?

Postby gaojie » Mon Feb 27, 2012 10:19 pm

I'm totally new at this and want to discover and play around a bit.

I am considering buying the Spatial 3/3/3 because it has both gyros and accelerometers. But I read that its accelerometers read values up to 5g. This sounds a bit too much for body movements (typically +/-2g no?). Since the body movements I'm looking to measure are relatively slow and range of movement not that big, is the spatial sensitive enough to measure them?

Thanks!

J

fraser
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Re: is spatial 3/3/3 appropriate for sensing body movements?

Postby fraser » Tue Feb 28, 2012 9:32 am

You can definitely use the spatial to measure motion of the human body. The 1056 has 228ug resolution on the accelerometer and 0.02 degree resolution on the gryo, so I wouldn't expect an issue. Since these are analog sensors, having a larger range (5g vs 2g) will not be a large detriment to your resolution since it is typically the ADC that limits this.

gaojie
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Re: is spatial 3/3/3 appropriate for sensing body movements?

Postby gaojie » Tue Feb 28, 2012 9:38 am

cool!
Thx for the reply.


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