sensor device for the contactless acquisition of a rotation characteristic of a rotatable object
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Abstract
A sensor device is described for the contactless acquisition of at least one rotation characteristic of a rotatable object, in particular for acquiring a rotational speed of a compressor wheel of a turbocharger, and includes at least one sensor element. The sensor device also includes at least one magnetic-field generator for generating a magnetic field at the location of the rotatable object, and at least one magnetic-field sensor for detecting a magnetic field generated by eddy currents of the rotatable object. Moreover, the sensor device includes at least one temperature sensor. The magnetic-field generator and the magnetic-field sensor are jointly and at least partially disposed in a sensor section of the sensor housing. The temperature sensor is at least partially situated in the sensor section.
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Citations
23 Claims
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1-10. -10. (canceled)
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11. A sensor device for providing contactless acquisition of at least one rotation characteristic of a rotatable object, comprising:
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at least one sensor housing; at least one magnetic-field generator to generate a magnetic field at the location of the rotatable object; at least one magnetic-field sensor to detect a magnetic field generated by eddy currents of the rotatable object; and at least one temperature sensor; wherein the magnetic-field generator and the magnetic-field sensor are at least partially and jointly disposed in a sensor section of the sensor housing, and wherein the temperature sensor is at least partially disposed in the sensor section. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification