Rotation detection device and bearing having rotation...

Details Rotation detection device and bearing having rotation... Rotation detection device and bearing having rotation...

2009-09-28

2010-11-02

Patidar, Jay M (Department: 2858)

Electricity: measuring and testing

Electrical speed measuring

Including speed-related frequency generator

Reexamination Certificate

active

07825653

ABSTRACT:
To provide a rotation detecting system of a type having a high detecting resolution, in which the rotational position can be detected accurately, in which a sufficient gap can be secured between the sensor and the rotating body and which is effective to simplify assemblage and processing to thereby reduce the manufacturing cost, the rotation detecting system is provided with a multiplying section4for multiplying the pulses, generated by the sensor3, by a multiplication factor to form multiplied pulses Pb and a speed detecting section5for detecting an period average speed of the encoder71during the interval, in which the latest N pieces of the multiplied pulses Pb have been generated where N represents the multiplication factors by which the multiplied pulses Pb have been multiplied.

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English Translation of the International Preliminary Report on Patentability mailed Oct. 29, 2009 in corresponding International Patent Application PCT/JP2008/000628.
International Search Report for PCT/JP2008/000628, mailed Jun. 17, 2008.

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