Variflux vibration transducer

Details Variflux vibration transducer Variflux vibration transducer

1984-11-30

1987-05-05

Tarcza, Thomas H.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Receivers

73652, G01V 116

Patent

active

046637478

ABSTRACT:
The method of detecting vibrations comprises establishing a magnetic circuit with magnetic flux producing means and at least one airgap. Elastically supporting an annular non-magnetic conductor within the airgap. Fixedly supporting an annular coil in the airgap without there being relative movement between the coil means and the airgap, so that an electric signal becomes induced in the coil means in response to relative movement between the annular conductor and the airgap.
The vibration transducer comprises a magnetic circuit having magnetic flux producing means and at least one airgap. An annular non-magnetic conductor is elastically supported within the airgap. An annular coil means is fixedly supported in the airgap without there being relative movement between the coil means and the airgap, so that an electric signal becomes induced in the coil means in response to relative movement between the annular conductor and the airgap.

REFERENCES:
patent: 3913063 (1975-10-01), Sears
patent: 4159464 (1979-06-01), Hall, Jr.

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