Transducer plate for electro-acoustic transducers

Details Transducer plate for electro-acoustic transducers Transducer plate for electro-acoustic transducers

1983-08-18

1985-01-15

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310322, 179110A, H01L 4108

Patent

active

044940327

ABSTRACT:
The invention relates to a transducer plate for electro-acoustic transducers, such as used in telecommunications technology, having a carrier plate and a ceramic plate arranged on a carrier plate. The invention teaches a transducer plate which is dimensioned so that it can be used in a microphone, a receiver or a piezoelectric VF ringing device despite the different voltage response factors required for each application. The following dimensions should preferably be used: transducer plate diameter (0.sub.2)=43 mm; ceramic plate diameter (0.sub.1)=30 mm; transducer plate thickness (d)=150 microns; and ceramic plate thickness (1)=90 microns.

REFERENCES:
patent: 3708702 (1973-01-01), Brunnert et al.
patent: 3761956 (1973-09-01), Takahashi et al.
patent: 3970879 (1976-07-01), Kumon
patent: 4156156 (1979-05-01), Sweany et al.
patent: 4190782 (1980-02-01), Guess
patent: 4368401 (1983-01-01), Martin et al.
patent: 4376232 (1983-03-01), Martin

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