Measuring and testing – Gas analysis – Moisture content or vapor pressure
Patent
1973-09-07
1976-06-15
Woodiel, Donald O.
Measuring and testing
Gas analysis
Moisture content or vapor pressure
317246, G01L 912
Patent
active
039629210
ABSTRACT:
A pair of diaphragms with substantially equal natural frequencies are superposed for movement in phase and in unison under accelerating forces, with electrical capacitor plates deposited on adjacent surfaces which provide an electrical measure of the differential diaphragm stressing with one of the diaphragms subject to a fluid pressure differential.
REFERENCES:
patent: 2482440 (1949-09-01), Rylsky
patent: 3040583 (1962-06-01), Post
patent: 3356963 (1966-06-01), Buck
patent: 3814998 (1974-06-01), Thoma et al.
Lofstedt Ben E.
Seidner Orville R.
Talcott Joel D.
The Garrett Corporation
Woodiel Donald O.
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