Measuring and testing – Fluid pressure gauge – Vibration type
Patent
1975-12-03
1978-01-17
Woodiel, Donald O.
Measuring and testing
Fluid pressure gauge
Vibration type
73722, G01L 910
Patent
active
040685276
ABSTRACT:
A magnetostrictive pressure transducer is disclosed wherein pressure in the range of zero to 1000 psi can be accurately measured. The pressure transducer apparatus includes a diaphragm causing the pressure to be applied unidirectionally on sensor material having the property of undergoing changes in magnetic induction when a pressure is applied thereto, the change in magnetic induction being related to the applied pressure. The change in magnetic induction is measured and thus provides a measurement of the applied pressure. Several embodiments are also disclosed for measuring vacuum. In these embodiments force is also applied unidirectionally on the sensor material.
REFERENCES:
patent: 2376156 (1945-05-01), Kuehni
patent: 2414457 (1947-01-01), Eldridge
patent: 3162795 (1964-12-01), Cherniak
Jost Ernest M.
Reenstra Arthur L.
Trenkler George
Haug John A.
McAndrews James P.
Texas Instruments Incorporated
Woodiel Donald O.
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