Accelerometer
How do I choose the sensitivity of an accelerometer?
2020-02-22 16:44  Browse:226

Accelerometers with integral electronics have a maximum output voltage determined by the circuit design and the input voltage. The maximum output for an IEPE accelerometer is typically four to eight volts. An accelerometer with a sensitivity of 00 mV/g with electronics that has a maximum output of 5 V will have a dynamic range of +/- 50 g, while an accelerometer of sensitivity of 10 mV/g will have a dynamic range of +/- 500 g. If the maximum g levels likely to be experienced are known, then dividing this number by five volts will give the maximum sensitivity that should be used to get this dynamic range.
 
Example: Vibration expected to be seen is 300 g. Sensitivity will be 5 divided by 200, which equals 16.6 mV/g. The nearest sensitivity would be a 10 mV/g accelerometer.

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