Electromechanical apparatus comprising a capacitive device for detection of the angular position of a wheel set, and method for detection of the angular position of a wheel set
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United States of America Patent
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May 30, 2017
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N/A
app pub date -
Dec 22, 2015
filing date -
Dec 23, 2014
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Abstract
Electromechanical apparatus including a wheel set and an analogue indicator member which are integral in rotation, a stepping motor, and a capacitive device for detection of the angular position of the wheel set, including a rotor, a stator and an electronic measuring circuit, the stator including a first pair of electrodes having a first capacitance and a second pair of electrodes having a second capacitance, the rotor being adapted such that the values of the two capacitances depend on the angular position of the rotor, and an electronic measuring circuit being provided for generating an output signal representative of a difference between the respective values of the first and of the second capacitance.
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