PIEZOELECTRIC PRESSURE SENSOR

A piezoelectric pressure sensor, preferably for a vortex-shedding flowmeter. A piezoelectric transducer is located in a sensor chamber between and in physical contact with a vibratory diaphragm and a chamber surface. Pressure fluctuations in a von Karman vortex street outside the diaphragm compress...

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Bibliographische Detailangaben
Hauptverfasser:	BRIAN JOSEPH BURLAGE, DAVID EUGENE WIKLUND, GARY ALAN LENZ
Format:	Patent
Sprache:	eng
Schlagworte:	INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT MEASURING MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL METERING BY VOLUME PHYSICS TESTING
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Beschreibung
Zusammenfassung:	A piezoelectric pressure sensor, preferably for a vortex-shedding flowmeter. A piezoelectric transducer is located in a sensor chamber between and in physical contact with a vibratory diaphragm and a chamber surface. Pressure fluctuations in a von Karman vortex street outside the diaphragm compress the transducer, between the diaphragm and chamber surface. The transducer generates a responsive electrical signal which is related to the pressure fluctuations.