Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1988-05-12
1990-04-10
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
84DIG24, 84230, H01L 4108, G10H 300
Patent
active
049163507
ABSTRACT:
An improved sensor for detecting vibrations uses a flexible moving beam supported by two flexible leg members. The flexible moving beam can be moved in two directions. A protrusion extends from near one end of the flexible moving beam. The protrusion is placed against a transducer element 22 which is against a rest element 24 . When the moving beam is moved parallel to its length, the protrusion is pushed against the transducer element 22 and against the rest element 24, thereby generating electrical signals. When the moving beam detects vibrations in a direction perpendicular to its length, the protrusion is rotated upward and outward and pushes against the transducer element 22, causing the generation of electrical signal. The improved sensor is particularly adapted for detecting vibrations from a stringed musical instrument.
REFERENCES:
patent: 4020448 (1977-04-01), Corbett
patent: 4126801 (1978-11-01), Corbett
patent: 4144747 (1979-03-01), Datwyler, Jr.
patent: 4239088 (1980-12-01), Check et al.
patent: 4703216 (1987-10-01), Corbett
Bennett Robert G.
Cellucci Robert
MacKay Duncan R.
Madden Allan C.
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