Electrode connections for a piezoelectric sensor

Details Electrode connections for a piezoelectric sensor Electrode connections for a piezoelectric sensor

1983-09-22

1985-04-16

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310344, 310365, 310334, 310331, H01L 4108

Patent

active

045118191

ABSTRACT:
A piezoelectric sensor for measuring an external force is disclosed which is accommodated in a cassette through a sealing member and provided with a pair of electrodes which are respectively bonded to opposite sides of a piezoelectric element. A masking strip made of a highly insulative material covers the whole area of and end face of the piezoelectric element, which is exposed to the outside of the sensor, and a desired width of an end face of each of the electrodes adjacent to the end face of the piezoelectric element. This maintains a high resistance between the electrodes having the piezoelectric element therebetween and thereby promotes accurate measurement without being effected by changes in the resistance of the sealing member due to temperature variation. The sensor is effectively applicable to a vortex flow meter.

REFERENCES:
patent: 2289954 (1942-07-01), Arndt, Jr.
patent: 2483677 (1949-10-01), Swinehart
patent: 2558563 (1951-06-01), Janssen
patent: 3031591 (1962-04-01), Cary et al.
patent: 3054982 (1962-09-01), Keiser
patent: 3509389 (1970-04-01), Vrataric, Jr.
patent: 3821747 (1974-06-01), Mason

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