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0 pointsjonathrg1mo ago0 comments

Presumably there is an antialiasing low pass filter somewhere before JS gets to the data. I have a similar sample rate and it certainly didn't work at all for me.

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4 comments · 2 top-level

ErroneousBosh1mo ago· 2 in thread

If the accelerometer samples at 50Hz, how could there be an antialiasing filter?

What would that filter look like?

colanderman1mo ago

Anything physical which dampens higher frequency oscillations would act as an antialiasing filter.

ErroneousBosh1mo ago

What sort of size do you think something that would damp 25Hz vibrations in something that weighs a gram or two would need to be?

regularfry1mo ago

They have analogue AA filters just before the sampler.

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