Intrusion detecting sensor assembly using a piezoelectric bender

Details Intrusion detecting sensor assembly using a piezoelectric bender Intrusion detecting sensor assembly using a piezoelectric bender

1978-10-10

1980-04-08

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310331, 73782, 340666, H01L 4110

Patent

active

041974794

ABSTRACT:
An intrusion detecting sensor assembly comprising a bracket having one leg to be clamped to the surface of a structural member, for instance of a building, and having a second leg spaced from the first leg and also abutting said surface, the second leg being joined to the first leg by a bridge portion of the bracket supporting a piezoceramic transducer which is sensitive to bending of the bridge portion when the structural member is flexed by changes in its loading.

REFERENCES:
patent: 2558563 (1951-06-01), Janssen
patent: 3519800 (1970-07-01), Shill
patent: 3599479 (1971-08-01), Kutsay
patent: 3602866 (1971-08-01), Saxl
patent: 3782182 (1974-01-01), Starr
patent: 3853000 (1974-12-01), Barnett et al.
patent: 3903733 (1975-09-01), Murayama et al.
patent: 4012649 (1977-03-01), Cook et al.

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