A proximity sensor comprises a reference inductor, a first set of sensor inductors, a first set of comparators, each comparator of the first set of comparators corresponding to one of the sensor inductors of the first set of sensor inductors, and an alternating current voltage source to output a sinusoidal voltage to the reference inductor and each of the sensor inductors. Each comparator of the first set of comparators receives a voltage across the reference inductor as a reference voltage and each comparator of the first set of comparators receives a voltage across a corresponding sensor inductor as an input voltage.
PASSIVE INDUCTIVE PROXIMITY SENSOR ARRAY SIGNAL PROCESSING CIRCUIT
26.01.2023
Patent
Elektronische Ressource
Englisch
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