Pressure transducer auto reference

Details Pressure transducer auto reference Pressure transducer auto reference

1976-08-20

1977-10-04

Swisher, S. Clement

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

G01L 2700

Patent

active

040517128

ABSTRACT:
A pressure transducer is automatically calibrated electronically by periodically subjecting the transducer to a reference pressure for a brief period of time. During this period of time the transducer electrical output is automatically adjusted to a level that represents the desired value for the reference pressure. The calibration can be accomplished just prior to taking a measurement or it can be accomplished at regular intervals spaced to ensure the accuracy of readings taken between calibrations.

REFERENCES:
patent: 3689748 (1972-09-01), Bothne
patent: 3740533 (1973-06-01), Zeggelaar

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