Velocity transducer for vehicle suspension system

Details Velocity transducer for vehicle suspension system Velocity transducer for vehicle suspension system

1989-11-13

1990-08-21

Myracle, Jerry W.

Measuring and testing

Simulating operating condition

Marine

73526, G01M 1900

Patent

active

049495739

ABSTRACT:
The transducer is directly associated with a fluid-type damper having a cover member and a cylinder member that undergo telescopic movement relative to each other in response to relative movement between vehicle components interconnected by the damper. In the preferred embodiments, both a passive electrical coil and a magnet are mounted upon the cover member, in fixed relationship to each other. Relative axial telescoping movement between the cover member and the cylinder member of the damper changes the flux field of the magnet and induces in the coil a voltage which is proportional to the relative velocity between the damper members and thus between the vehicle components interconnected by the damper. In an alternative embodiment, the magnet is mounted upon an end portion of the damper cylinder member.

REFERENCES:
patent: 2973969 (1961-03-01), Thall
patent: 4054295 (1977-10-01), Elliott
patent: 4080592 (1978-03-01), Zabler
patent: 4132980 (1979-01-01), Zabler
patent: 4351515 (1982-09-01), Yoshida
patent: 4365513 (1982-12-01), Iwasaki
patent: 4502006 (1985-02-01), Goodwin et al.
patent: 4638670 (1987-01-01), Moser
patent: 4802657 (1989-02-01), Wijnhoven et al.
Schaevitz Technical Bulletins 1101 and 1101A Entitled "Linear Velocity Transducers" (5/85 and 1/89).
Lucas Automotive-Sensors.

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