Piezoelectric ceramic transducer

Details Piezoelectric ceramic transducer Piezoelectric ceramic transducer

1981-11-09

1984-09-11

Wong, Peter S.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310348, 368255, H04R 1700

Patent

active

044712588

ABSTRACT:
In a transducer including at least a piezoelectric ceramic plate which has curved surfaces, electrodes which are formed on both the main surfaces of the piezoelectric ceramic plate, a frame which holds the piezoelectric ceramic plate, and means for applying an electric signal to the electrodes; this invention is characterized in that the holding frame is made of an organic high-polymer resin. Since the piezoelectric ceramic plate has the curved surfaces and the holding frame is made of the organic high-polymer resin, the transducer is suitable as a loudspeaker for audio use having a wide frequency band.

REFERENCES:
patent: 3123727 (1964-03-01), Kritz
patent: 3370187 (1968-02-01), Straube
patent: 3588552 (1971-06-01), Schafft
patent: 3708702 (1973-01-01), Brunnert et al.
patent: 3721840 (1973-03-01), Yamada
patent: 4352961 (1982-10-01), Kumada et al.

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