Torsional mode CT or DT cut quartz resonator

Details Torsional mode CT or DT cut quartz resonator Torsional mode CT or DT cut quartz resonator

1977-01-11

1978-11-21

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310368, 310370, H01L 4110

Patent

active

041268024

ABSTRACT:
The invention relates to piezoelectric resonators, and more particularly to piezoelectric resonators comprising a DT- or CT-cut quartz plate vibrating torsionally about its longitudinal axis which is the electrical axis X of the quartz crystal. The width of the plate b, extending along the Z'-axis, and its thickness h extending along the Y'-axis are linked by the relation

REFERENCES:
patent: 1874960 (1932-08-01), Giebe et al.
patent: 2227904 (1941-01-01), Hight
patent: 3128397 (1964-04-01), Shinoda et al.
patent: 3483402 (1969-12-01), Royer
patent: 3497732 (1970-02-01), Royer

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