Measuring and testing – With fluid pressure – Dimension – shape – or size
Patent
1983-11-17
1985-06-18
Levy, Stewart J.
Measuring and testing
With fluid pressure
Dimension, shape, or size
G01B 1312
Patent
active
045234515
ABSTRACT:
An hydraulic proximity probe arrangement for determining the spacing of the surface of a rotating body from another fixed body as it rotates in a fluid medium. The body is provided with a plurality of circumferentially and equally spaced surface irregularities of like size and shape, such as indentations or projections, and at least a pair of probes are circumferentially spaced around the body, each being axially spaced an equal distance from the body's surfaces when at rest. The probes pick-up pulsations in the fluid medium caused by the rotating body, the amplitudes of which are indicative of the spacing of the surface of the rotating body from the end of the probes. These pulsations are signalized and the resultant signals are compared with calibrated deviation signals to provide data indicative of the spacing of the body's surface from a reference point during rotation of the body.
REFERENCES:
patent: 2665579 (1954-01-01), Fortier
patent: 2684568 (1954-07-01), Senger
patent: 3363453 (1968-01-01), Erickson
patent: 3754433 (1973-08-01), Hyer
Bently Nevada--"Probe and Proximitor", Installation Manual, Section 1, Theory of Operation, (Title Page, Index, pp. 1--1 to 1--13), undated.
Borg-Warner Corporation
Levy Stewart J.
Roskos Joseph W.
Zieg Robert L.
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