Structure-borne sound detector for an intruder alarm system

Details Structure-borne sound detector for an intruder alarm system Structure-borne sound detector for an intruder alarm system

H - Electricity

04

R

H04R 17/02 (2006.01) G01H 11/08 (2006.01) G08B 13/16 (2006.01)

Patent

CA 2138066

The detector contains a structure-borne sound microphone connected to an electronic evaluation unit with a piezoelectric sensor (18) for structure-borne sound vibrations. This sensor has a vibrating bar (28), which is attached by means of hybrid technology to a carrier (27). The vibrating bar (28) is formed by a bimorph element and the carrier by an electrically conductive ceramic wafer.

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