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Temperature Compensation For Magnetic Field Sensing Devices And A Magnetic Field Sensing Device Using The Same
Temperature Compensation For Magnetic Field Sensing Devices And A Magnetic Field Sensing Device Using The Same
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机译:磁场传感装置的温度补偿及使用该温度补偿装置的磁场传感装置
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摘要
A method of compensating for an effect of temperature includes providing a set of magnetic sensors arranged along a sensing path. Each magnetic sensor is adapted to sense a magnetic field created by a magnetic actuator which can move along the sensing path and to provide a sensing signal indicative of a position and/or a displacement of the magnetic actuator relative to the sensing path. The method includes selecting one or more magnetic sensors from the set of magnetic sensors for use as temperature sensors, estimating a distribution of temperature over at least a portion of the sensing path based on the sensing signals output by the one or more magnetic sensors selected as temperature sensors, and compensating for the effect of temperature on the sensing signals output by one or more magnetic sensors of the set of magnetic sensors using the distribution of temperature that was estimated.
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