Piezoelectric transducer and sound-generating device

Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices

Patent

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Details

310324, 310338, 310357, 310364, H01L 4108

Patent

active

051051168

ABSTRACT:
A piezoelectric transducer useful for example as a sound source or a strain detector includes a ferroelectric liquid crystal sealed between two baseplates with electrodes and alignment layers on the inner facing surfaces of the baseplates. One of the baseplates is thicker than the other, or is of a different material, so that the two baseplates have different flexural rigidity.

REFERENCES:
patent: 3761956 (1973-09-01), Takahashi et al.
patent: 3970879 (1976-07-01), Kumon
patent: 4869577 (1989-09-01), Masaki
patent: 4875378 (1989-10-01), Yamazaki et al.

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