Apparatus for measuring rotational velocity of a shaft

Details Apparatus for measuring rotational velocity of a shaft Apparatus for measuring rotational velocity of a shaft

1982-06-28

1984-12-18

Krawczewicz, Stanley T.

Electricity: measuring and testing

Electrical speed measuring

Including speed-related frequency generator

324173, G01P 348, G01P 354

Patent

active

044892730

ABSTRACT:
An apparatus is disclosed for mounting a rotational signal transducer on a rotary shaft where the transducer generates a signal proportional to the shaft's rotational velocity. The apparatus includes a gear mounted for rotation with the shaft. A support platform is rotatably secured to the shaft by a roller bearing. The roller bearing permits the shaft and platform to rotate relative to one another but prevents relative axial motion between the shaft and platform. A transducer is mounted on the platform and operably aligned over the gear and generates a signal as gear teeth pass the transducer. A torque rod pivotally fixed to both the platform and a stationary support restrains the platform from rotating with the shaft. The pivotal connections of the torque rod permit the platform to move axially with the shaft.

REFERENCES:
patent: 4259637 (1981-03-01), Bloomfield et al.
Speed Signal Generator of the Woodward Governor Co., Rockford, Illinois, Bulletin 11007B, pp. 1-12.

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