Measuring and testing – Fluid pressure gauge – Diaphragm
Patent
1991-06-07
1992-12-29
Woodiel, Donald O.
Measuring and testing
Fluid pressure gauge
Diaphragm
73720, 73726, 73727, 73756, 338 4, G01L 708, G01L 906, G01L 1302
Patent
active
051741580
ABSTRACT:
A resistive strain gauge pressure sensor including upper and lower housings coacting to define a pressure chamber within the housing. A board member is clamped between the housings and defines a diaphragm portion which extends across the pressure chamber to divide the pressure chamber into upper and lower chamber portions. All of the circuitry of the sensor is screen printed onto the lower planar face of the board member including the various resistor elements of the strain gauge assembly, the various elements of the conditioning circuit receiving the output of the strain gauge assembly, and the various further leads required to connect the circuitry elements to the terminals of the sensor. The sensor terminals are provided by a plurality of connector pins extending downwardly through the board member for connection at their respective lower ends to the circuitry provided on the lower face of the board member.
REFERENCES:
patent: 3505634 (1967-11-01), Von Vick
patent: 3748571 (1973-07-01), Kurtz
patent: 4295376 (1981-10-01), Bell
patent: 4311980 (1982-01-01), Prudenziati
patent: 4444054 (1984-04-01), Schaff et al.
patent: 4481497 (1984-11-01), Kurtz et al.
patent: 4516430 (1985-05-01), Kurtz et al.
patent: 4907449 (1990-03-01), Call et al.
Pp. 422-438 "Measuring Systems Application and Design" Ernest Doebelim, 3rd Edition, McGraw Hill.
Atsugi Unisia Corporation Brochure.
IBM Technical Disclosure Bulletin.
MacLean-Fogg Company
Woodiel Donald O.
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