Electricity: measuring and testing – Electrical speed measuring
Reexamination Certificate
2008-01-17
2010-06-22
Tran, Khoi (Department: 3664)
Electricity: measuring and testing
Electrical speed measuring
C073S001140, C073S514390, C384S448000, C377S089000, C340S870310, C324S207200, C324S207210, C324S207250, C307S112000
Reexamination Certificate
active
07741838
ABSTRACT:
A rotation detecting device that includes an electric power generator having a stator and a rotor, said rotor having a plurality of alternating opposite magnetic poles in a circumferential direction of the rotor, at least a first magnetic sensor mounted on either the stator or a support member for supporting the stator and operable to detect the alternating opposite magnetic poles in the rotor; and an electric power supply circuit for utilizing an electric power generated by the electric power generator as an electric power source for the at least first magnetic sensor.
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Iwamoto Ken-ichi
Ohba Hiroaki
Okada Koichi
Takahashi Toru
NTN Corporation
Sriraman Nikhil
Tran Khoi
LandOfFree
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