Device for detecting angular velocity

Details Device for detecting angular velocity Device for detecting angular velocity

1991-03-01

1993-10-19

Williams, Hezron E.

Measuring and testing

Speed, velocity, or acceleration

Angular rate using gyroscopic or coriolis effect

73516R, G01P 1508

Patent

active

052535258

ABSTRACT:
An angular velocity sensor having a casing in which a disk shaped permanent magnet member is arranged so that it floats on a magnetic fluid filled in the casing. A Hall motor is provided for rotating the permanent magnet about its axis in the casing, and a detection unit is provided detecting an inclination of the magnet member about an axis which is transverse to the axis about which the magnet member rotates, which inclination is generated when the sensor is subjected to an angular movement. An angular velocity of such an angular movement is calculated from the detected degree of inclination of the magnet member.

REFERENCES:
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patent: 3902374 (1975-09-01), Hoffman et al.
patent: 4043204 (1977-08-01), Hunter et al.
patent: 4047439 (1977-09-01), Russell et al.
patent: 4192189 (1980-03-01), Presley
patent: 4570507 (1986-02-01), Hunter et al.
patent: 4845988 (1989-07-01), Russell et al.
patent: 4922753 (1990-05-01), Idogaki et al.

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