Magnetic speed sensor with an adaptive threshold circuit for use with a bearing assembly
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United States of America Patent
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Apr 3, 1990
Grant Date -
N/A
app pub date -
Apr 4, 1988
filing date -
Apr 4, 1988
priority date (Note) -
Expired
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Abstract
A magnetic sensor bearing utilizes an adaptive threshold circuit for signal processing in order to compensate for external factors such as temperature, stress, aging, and external magnetic fields which all affect a fixed reference signal used with a comparator. As the magnetic sensor's output signal drifts due to these external factors, the adaptive threshold circuit causes the reference signals to drift in a complementary manner so that the magnetic sensor bearing continues to function properly in spite of the external factors.
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