Micro displacement force transducer

Details Micro displacement force transducer Micro displacement force transducer

1988-01-19

1989-10-17

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

Bourdon

73718, 73724, 361283, G01L 704, G01L 912

Patent

active

048738700

ABSTRACT:
A sensor system utilizing a bourdon tube to generate a force as a function of pressure to deflect a diaphragm in a capacitor device where the diaphragm varies capacitance values of the capacitor device as a function of the applied force. The capacitor device is an essentially integral circularly shaped construction of quartz material in which the diaphragm is attached to a tubular quartz member. A metal member having a similar coefficient of temperature expansion to the coefficient of the quartz is used to couple the diaphragm to the bourdon tube.

REFERENCES:
patent: 3479879 (1969-11-01), Music
patent: 4301492 (1981-11-01), Paquin et al.
patent: 4388833 (1983-06-01), Kuwayama
patent: 4523474 (1985-06-01), Browne et al.
patent: 4691574 (1987-09-01), Delatorre
patent: 4741214 (1988-05-01), Vidmantas

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