DT cut, contour mode piezoelectric crystal

Details DT cut, contour mode piezoelectric crystal DT cut, contour mode piezoelectric crystal

1974-10-21

1976-09-07

Budd, Mark O.

Electrical generator or motor structure

Educational or construction units or kits

310 96, H01L 4104

Patent

active

039796140

ABSTRACT:
In a crystal element of the type wherein a DT-cut crystal element is used to generate vibrations of the contour mode, one side of the crystal element is flat and the thickness of the element is gradually decreased from the center toward the periphery thereof.

REFERENCES:
patent: 2159796 (1939-05-01), Hawk
patent: 2261791 (1941-11-01), Bokovoy
patent: 2486916 (1949-11-01), Bottom
patent: 3097315 (1963-07-01), Shinada et al.
patent: 3497732 (1970-02-01), Royer
handbook of Piezo Xtals, by J. P. Buchanan, WADC Technical Report 54-248, Dec. 1954, pp. 35-45.
Piezoelectricity, by W. G. Cady, Dover Publications, 1964, pp. 451-460.

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