Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1974-01-16
1978-02-28
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310329, 310369, H01L 4118
Patent
active
RE0295590
ABSTRACT:
The transducer of this invention utilizes an annular lithium niobate crystal operated in the compression mode with the sensitive axis of the crystal arranged at an angle of about -51.4.degree. to the Z, or optical, axis of the crystal in the first and third quadrants of the Y-Z plane of the crystal. This accelerometer has high efficiency and operates effectively over a wide range of temperatures, including high temperatures above 1000.degree. F.
REFERENCES:
patent: 3185869 (1965-05-01), Shoor
patent: 3389276 (1968-06-01), Gradin et al.
patent: 3487238 (1969-12-01), Angleton et al.
Hardware Report dated Jan. 1970 from Electro Technology, pp. 33-38, Jan. 1970.
Journal of the Acoustical Society of America (JASA), paper by Onoe, Warner and Coquin, 1967.
Becton, Dickinson Electronics Company
Budd Mark O.
Lawlor Reed C.
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