Pressure sensors

Details Pressure sensors Pressure sensors

1981-08-03

1984-02-28

Griffin, Donald A.

Electricity: electrical systems and devices

Electrostatic capacitors

Variable

73718, H01G 700, H01G 534

Patent

active

044344511

ABSTRACT:
A capacitance type pressure transducer for pressure measurements for accurate pressurements under differing temperature and pressure conditions having a mechanical construction wherein the displacement characteristics of the transducer as a function of temperature are equated to a compensating change in capacitance as a function of temperature so that changes in temperature do not change the accuracy of the transducer response; a mechanical configuration of the transducer to provide equivalent thermal pathways in the transducer to equalize transient temperature effects upon the transducer and a mechanical design to provide a structural capacitance relationship basically independent of gravitational effects due to positional location of the transducer.

REFERENCES:
patent: 3858097 (1974-12-01), Polye
patent: 3859575 (1975-01-01), Lee
patent: 4196632 (1980-04-01), Sikorra

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