Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1976-03-12
1978-04-18
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
73517R, 310329, H01L 4104
Patent
active
040853497
ABSTRACT:
A piezo electric transducer employs a stack of piezo electric crystals interposed between electrodes and maintained under compression to develop an electrical charge which instantaneously corresponds to the acceleration of the device. One or two electrical resistors in series with the piezo electric crystal stack output develops a charge which instantaneously corresponds to the velocity of the device. The velocity responsive charge is delivered to a charge converter which may be located remotely from the piezo electric transducer. The charge converter generates an electrical signal having a voltage which is proportional to the instantaneous velocity of the device. The assembly permits use of high-sensitivity piezo electric crystals.
REFERENCES:
patent: RE28596 (1975-10-01), Siegel
patent: 3285074 (1966-11-01), Elazar
patent: 3356868 (1967-12-01), Cother
patent: 3389276 (1968-06-01), Gradin et al.
patent: 3390286 (1968-06-01), Gradin et al.
patent: 3453457 (1969-07-01), Hayer et al.
patent: 3749946 (1973-07-01), Ruti
Budd Mark O.
IRD Mechanalysis, Inc.
Keck Harry B.
Manias George E.
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