Small piezoelectric tuning fork

Details Small piezoelectric tuning fork Small piezoelectric tuning fork

1977-09-06

1981-10-27

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310348, H01L 4108

Patent

active

042976103

ABSTRACT:
A tuning fork-type quartz vibrator having leg members of a length of below six millimeters and a thickness/width ratio below one reveals the zero temperature coefficient at temperatures appearing within a wrist watch carried by a human body. The vibrator also has a favorable low series resonant impedance.

REFERENCES:
patent: 3131320 (1964-04-01), Shinada et al.
patent: 4035673 (1977-07-01), Ishida et al.

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