TRANSMITTER DEVICE, SENSOR DEVICE AND METHOD FOR SENSING A MAGNETIC FIELD CHANGE
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United States of America Patent
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May 2, 2019
app pub date -
Jun 1, 2017
filing date -
Jun 1, 2017
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Abstract
A transmitter device for a sensor device detects a magnetic field change caused by an object approaching or moving past the sensor device, in particular by a wheel of a rail vehicle. The transmitter device has at least two alternating-current-fed transmitter oscillating circuits. In order to implement error disclosure of the sensor device in a particularly simple manner, the at least two transmitter oscillating circuits are formed in such a way that the resonance frequencies thereof are different from each other. A sensor device and a method for detecting a magnetic field change are also provided.
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