Apparatus for, and method of, measuring dynamic forces

Details Apparatus for, and method of, measuring dynamic forces Apparatus for, and method of, measuring dynamic forces

1976-04-09

1977-06-07

Myracle, Jerry W.

Measuring and testing

Rotor unbalance

Dynamic

G01M 122

Patent

active

040275396

ABSTRACT:
Apparatus is provided to measure the amplitude and frequency of dynamic force exerted by a rotating shaft on an adjacent non-rotating bearing. The apparatus includes two force probes operatively mounted on the bearing to sense force components in two perpendicular directions. A piezo-electric load cell in each force probe senses the frequency and a proportional amount of the amplitude of the force component in its direction, and converts such sensed frequency and amplitude into an electrical signal. The sensed amplitude in each direction is calibrated to actual amplitude. The calibrated signals from the two force probes are supplied to an oscilloscope to display a composite representation of such dynamic force in a plane including the two directions. In use, the apparatus performs a novel method of measuring such dynamic force.

REFERENCES:
patent: 2892152 (1959-06-01), Buisson
patent: 2924977 (1960-02-01), Kenyon et al.

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