Electricity: measuring and testing – Electrical speed measuring – Including speed-related frequency generator
Patent
1991-04-03
1992-09-15
Strecker, Gerard R.
Electricity: measuring and testing
Electrical speed measuring
Including speed-related frequency generator
188181R, 384448, G01P 344, F16C 3200, F16C 1900
Patent
active
051481049
ABSTRACT:
A pulse rotor is externally supported and secured on a cylindrical face section formed on a hub. The amount by which this pulse rotor projects from an outer ring member is regulated when the pulse rotor is fitted onto the cylindrical face section for supporting. A sensor is provided on the inside of a cover which covers the open end section of the outer ring member. The axial positional relationship between the cover and the outer ring member is uniformly maintained by means of an engaging projection formed on the radially outer peripheral surface of the cover. The distance between the axial end surface of the sensor and the axial end surface of the outer ring member is controlled to a specified value by this means. As a result, the distance between the pulse rotor and the sensor is precisely controlled.
REFERENCES:
patent: 4069435 (1978-01-01), Wannerskog et al.
patent: 4783180 (1988-11-01), Hayashi
patent: 4797612 (1989-01-01), Nakanishi et al.
patent: 4907445 (1990-03-01), Okumura
patent: 4978235 (1990-12-01), Ouchi
Nippon Seiko Kabushiki Kaisha
Strecker Gerard R.
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