Mechanical switching means for providing shunt calibration in a

Details Mechanical switching means for providing shunt calibration in a Mechanical switching means for providing shunt calibration in a

1982-11-26

1986-01-28

Scott, J. R.

Electrical transmission or interconnection systems

Switching systems

7386235, 336120, G01L 300, H01H 900

Patent

active

045673772

ABSTRACT:
A system for calibrating a strain gage transducer mounted on a rotating member comprising a mechanical switch capable of making contact from a stator to selected terminals on the rotor to provide both positive and negative shunt calibration of the transducer. In a first embodiment, calibration is carried out while the rotor is stationary, providing a simple, cost effective calibration system for most applications. In a second embodiment, special terminals permit contact while the rotor is in motion. In a third embodiment, simultaneous calibration and gage measurements are possible while the rotor is in motion providing a means of continuous correction which is especially advantageous in applications where the rotor is subject to a rapidly changing environment.

REFERENCES:
patent: 3068685 (1962-12-01), Rogers
patent: 3519969 (1970-07-01), Hoffman
patent: 3790811 (1974-02-01), Cooper et al.
patent: 3985981 (1976-10-01), Weirick et al.
patent: 4059005 (1977-11-01), Brendel et al.

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