Speed sensor assembly having a fluid seal carrier and piloting c

Details Speed sensor assembly having a fluid seal carrier and piloting c Speed sensor assembly having a fluid seal carrier and piloting c

1993-03-15

1996-10-29

Snow, Walter E.

Electricity: measuring and testing

Electrical speed measuring

Including speed-related frequency generator

32420725, G01P 3487, G01P 3488, F16C 3200, G01B 714

Patent

active

055700136

ABSTRACT:
A fluid seal is joined to a seal carrier, and a magneto-responsive sensor is coupled to a carrier to sense the polarities of a magnet borne on a rotatable shaft. The seal carrier, with the incorporated sensor, is arranged about the shaft, and leads from the sensor transmit an output signal voltage which corresponds to, or is proportional to the speed of rotation of the shaft. Depending upon the type of sensor employed, the signal voltage will be of repeatedly changing amplitude (i.e., pulsed or sine wave), or of given amplitude, in which the signal goes from zero to the given amplitude, to zero cyclically, or the sine wave amplitude/voltage increases with increasing speed, or pulse widths which diminish with speed acceleration.

REFERENCES:
patent: 3619680 (1971-11-01), Okamoto
patent: 3719841 (1973-03-01), Ritsema
patent: 3999441 (1976-12-01), Gonzales
patent: 4246790 (1981-01-01), Nichols
patent: 4504756 (1985-03-01), Amano et al.
patent: 4940936 (1990-07-01), Grillo et al.
patent: 4988220 (1991-01-01), Christiansen et al.
patent: 5264790 (1993-11-01), Moretti et al.
patent: 5293124 (1994-03-01), Caillaut et al.

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