Measuring and testing – Speed – velocity – or acceleration – Angular rate using gyroscopic or coriolis effect
Patent
1979-12-13
1981-11-10
Gill, James J.
Measuring and testing
Speed, velocity, or acceleration
Angular rate using gyroscopic or coriolis effect
74 5R, G01C 1906
Patent
active
042991277
ABSTRACT:
Flexible-hub magnetic gyro wheel including a ring member comprising ferromagnetic material or the like and including a plurality of alternating magnetic poles circumferentially spaced about the ring member, a flexible hub affixed to the interior of the ring, and structure rigidly attaching the flexible hub to a drive shaft, such as the shaft of a motor or a shaft driven by a motor or other drive structure. The structure for rigidly attaching the flexible hub to a shaft consists of a set collar and a set washer on opposing sides of the center of the hub material whereby the set collar and set washer support the magnetic gyro wheel on an axially rotating shaft. The magnetic gyro wheel is suitable for use in a rate of turn indicator, a gyro, or other like instrument designed to sense and respond to a rate of turn or angular velocity applied to the instrument at a right angle to the spin axis of the magnetic gyro wheel. The magnetic gyro wheel can comprise one or more rings of magnetic material magnetized with alternating poles with the flexible hub attached thereto or can be fabricated from a plurality of magnets held together in such a way as to achieve the characteristics of the magnetized ring or rings described above. As one alternative the magnetic gyro wheel can also be made of a flexible magnetic material magnetized with alternate magnetic domains on one or both sides of the wheel or upon the periphery of the wheel.
REFERENCES:
patent: 2815584 (1957-12-01), Watson
patent: 2951377 (1960-09-01), Lahde
patent: 4147663 (1979-04-01), Bower et al.
Gill James J.
Jaeger Hugh D.
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