Piezoelectric pressure sensor

Details Piezoelectric pressure sensor Piezoelectric pressure sensor

G - Physics

01

F

73/125, 73/3, 73

G01F 1/32 (2006.01) G01F 1/64 (2006.01) G01L 1/16 (2006.01) G01L 9/00 (2006.01)

Patent

CA 1183011

ABSTRACT 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.

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