Magnetic field sensor mounting with sensor arm contacting rotating bearing member
First Claim
Patent Images
1. In combination:
- an annular member having an annular magnetized portion as a magnetic field source;
an arm supporting member having a flexible arm extending from the arm supporting member into contact with the annular member, the annular member being rotatable relative to the arm supporting member; and
a magnetic field sensor mounted on the flexible arm and positioned to sense the magnetic field from the magnetic field source.
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Accused Products
Abstract
A magnetic field source is mounted on one race of a two-race radial or thrust bearing. The race with the magnetic field source rotates. The other race does not rotate. A magnetic field sensor is mounted on a flexible arm of a rigid arm support. The arm support with its flexible arm does not rotate but the flexible arm may flex in response to movement of either of the races or the flexible arm support member so that the magnetic field sensor is always kept a constant predetermined distance from the magnetic field source. The number of times alternate magnetic poles on the rotating race is sensed by the sensor per unit of time indicates the speed of the rotating race.
15 Citations
14 Claims
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1. In combination:
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an annular member having an annular magnetized portion as a magnetic field source; an arm supporting member having a flexible arm extending from the arm supporting member into contact with the annular member, the annular member being rotatable relative to the arm supporting member; and a magnetic field sensor mounted on the flexible arm and positioned to sense the magnetic field from the magnetic field source. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. In combination:
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an annular member having an annular magnetized portion as a magnetic field source; an arm supporting member, the annular member being rotatable relative to the arm supporting member; a sensor arm extending from the arm supporting member into contact with the annular member; a biasing means for maintaining the sensor arm in contact with the annular member; and a magnetic field sensor mounted on the sensor arm and positioned to sense the magnetic field from the magnetic field source. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification