Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1994-02-04
1995-02-14
Dougherty, Thomas M.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310339, 310359, H01L 4108
Patent
active
053898508
ABSTRACT:
A sensor for sensing rotational displacements of a body comprises an elongated beam of a material providing a piezoelectric effect. The elongated beam has a first and second ends and a central portion, with the ends of the beam being attached to an interior surface of a case. The case, in turn, is attached to the body. When the body is subject to rotational accelerations, the beam is stressed, and a piezoelectric voltage is generated across the length of the beam.
REFERENCES:
patent: 2963911 (1960-12-01), Courtney-Pratt et al.
patent: 3142991 (1964-08-01), Pittman
patent: 3558936 (1971-01-01), Horan
patent: 3561832 (1971-02-01), Karrer et al.
patent: 3646536 (1972-02-01), Bleiman
patent: 3702997 (1972-11-01), Jamieson
patent: 3786457 (1974-01-01), Kahn
patent: 3984873 (1976-10-01), Pejcha
patent: 4197737 (1980-04-01), Pittman
patent: 4211951 (1980-07-01), Jensen
patent: 4280156 (1979-03-01), Villette
patent: 4315289 (1982-02-01), Holecek et al.
patent: 4345473 (1982-08-01), Berni
patent: 4535374 (1985-08-01), Anderson et al.
patent: 4686592 (1987-08-01), Carroll et al.
patent: 4718276 (1988-01-01), Laughlin
patent: 4754646 (1988-07-01), EerNisse et al.
patent: 4862298 (1989-08-01), Genheimer et al.
patent: 4933785 (1990-06-01), Morehouse et al.
patent: 5025336 (1991-06-01), Morehouse et al.
patent: 5027241 (1925-06-01), Hatch et al.
patent: 5049776 (1991-09-01), Ogawa
patent: 5067351 (1991-11-01), Laughlin
patent: 5170104 (1992-12-01), Laughlin
patent: 5176030 (1993-01-01), Laughlin
patent: 5189575 (1923-02-01), Onooka et al.
patent: 5272922 (1993-12-01), Watson
"Retracting Reciprocating Magnetic Stripe Read Head Drive", R. A. Hampson and J. V. Vetrone, IBM Technical Disclosure Bulletin vol. 25, No. 4, pp. 1827-1828, Sep. 1981.
Dougherty Thomas M.
Maxtor Corporation
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