Pressure transducers exhibiting linear pressure operation

Details Pressure transducers exhibiting linear pressure operation Pressure transducers exhibiting linear pressure operation

1982-08-19

1984-10-16

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

With pressure and/or temperature compensation

73721, 73727, G01L 906

Patent

active

044767269

ABSTRACT:
A bridge array employing piezoresistive sensors responsive to the longitudinal piezoresistive effect generally exhibits a positive nonlinearity over a pressure range, while a bridge array employing piezoresistive sensors employing the transverse piezoresistive effect exhibits a negative nonlinearity over the pressure range. A composite pressure transducer is provided by interconnecting a longitudinal and transverse bridge array in a common composite configuration. The resulting transducer exhibits linear operation over the pressure range due to the cancellation of said nonlinearities from the connected arrays.

REFERENCES:
patent: 4050313 (1977-09-01), Shimada et al.
patent: 4322980 (1982-04-01), Suzuki et al.

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