Digital Pressure Gauge Circuit

Posted on Apr 15, 2012

This electronic pressure gauge uses a Wheatstone bridge-type pressure sensor tb drive a 3 A digit A/D converter and a display. IC1 is a pump (quad) that interfaces the bridge sensor to the A/D converter. R16 provides zero adjustment and R6 provides full-scale calibration.

Digital Pressure Gauge Circuit
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D1 thru D4 provide temperature compensation.

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