Sensor for a rotating member of a bearing having reinforcing ele

Details Sensor for a rotating member of a bearing having reinforcing ele Sensor for a rotating member of a bearing having reinforcing ele

1997-10-15

2000-03-28

Snow, Walter E.

Electricity: measuring and testing

Electrical speed measuring

Including speed-related frequency generator

32420722, 384448, G01P 3487, H01F 702, F16C 1952

Patent

active

060436433

ABSTRACT:
Encoder device for a sensor for detecting the rotational speed of a rotating member of a bearing 1 mounted on a non-rotating member of the said bearing 1, of the type comprising a sensor 7 secured to an element that is stationary with respect to the non-rotating member and past which an element forming a rotor rotates with a small air gap, which element is equipped with an encoder 8 capable of producing in the sensor 7 a periodic signal of frequency proportional to the rotational speed of the rotor element. The encoder 8 comprises an annular active part 14 made using a plasto-magnet and provided with an active region 16 arranged to travel past the sensor 7. The encoder 8 comprises a reinforcing part composed of two annular elements 15 arranged in contact with the active part 14, one on either side of the active region 16.

REFERENCES:
patent: 4969753 (1990-11-01), Kato et al.
patent: 5325055 (1994-06-01), Geringer
International Preliminary Search Report dated Aug. 13, 1997.

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