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Pressure measurement

Question asked by Wheatstone on Mar 10, 2017
Latest reply on Mar 12, 2017 by JellenieR

I would like some assistance to select an adc evaluation board for strain
gage measurements I need to perform. I need to estimate the transient
pressure in a chamber for an event that lasts for about 2-3
milliseconds. The differential voltage is between 0 and 100 uvolts with

some around 30 uVolts.  The main pressure event lasts for about

1 millisecond so the bandwidth needs to be at least 1-2 kHz.

A wheatstone bridge and a strain gage will be used. The excitation

voltage on the bridge will be 5 volts with a common mode voltage of 2.5 volts.

 

I see that a number of evaluation boards are available. Which would
be a reasonable one to acquire? If the sampling rate is sufficient,
oversampling might be useful using noise reduction averaging.

 

Thank you.

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