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Load cell with operational amplifier


crbojaca Sep 23, 2015 11:57 PM

Is it possible to add an operational amplifier between a load cell and a CR1000? The excitation voltage of the load cell is 5000 mV but the CR1000 is only capable of delivering 2500 mV. Thanks


kirving Sep 24, 2015 12:05 AM

Just a thought, but if the load cell is a passive strain gage bridge circuit it may not matter, and 2500 mV may be sufficient.


rlwoell Sep 28, 2015 08:21 PM

Also, adding additional circuitry introduces sources of drift and noise that could result in a less accurate measurement.

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