Are smartphone accelerometers useful for vibration test?

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Bandit127
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The phone microphone is a cartoon microphone for anything other than voice frequencies.

I suspect the same may be true for every transducer in there. (There are lots of them produced in a very competitive market). The first place I would be looking to evaluate the accelerometer is frequency response, rise time or some other measure of its linearity over a frequency domain.
 

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