Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Masahiro Inoue0
Katsura Koyagi0
Date of Patent
May 15, 2007
0Patent Application Number
105447680
Date Filed
February 6, 2004
0Patent Primary Examiner
Patent abstract
A sensor device 2 has a magnetostrictive sensor 8 provided on a fixed-side raceway member 3 for detecting a gap between the sensor and a rotation-side raceway member 4, and means for processing the output of the magnetostrictive sensor 8. The processing means comprises a rotation detecting unit for determining the speed of rotation of the rotation-side raceway member 4 from the number of repetitions of a variation in the output of the magnetostrictive sensor 8, a unit for averaging output values of the magnetostrictive sensor 8 and a load calculating unit for determining the load acting on an antifriction bearing from the output averaged by the averaging unit.
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