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Digital Pressure Gauge Circuit

2015-01-11 15:08  
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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

D1 thru D4 provide temperature compensation.



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