Non-contact power supply for height sensor with single cable
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United States of America Patent
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Jul 4, 2017
Grant Date -
Oct 16, 2014
app pub date -
Apr 9, 2014
filing date -
Apr 15, 2013
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Abstract
The present invention reveals a distance sensor comprising: a signal receiving unit, an electromagnetic wave transmitting unit, and a magnetic signal transmitting unit; wherein the signal transmitting unit is adapted to transmit to the signal receiving unit a sensed distance between the signal receiving unit and the magnetic signal transmitting unit, wherein the magnetic signal transmitting unit further comprises an electromagnetic wave receiving unit and an electromagnetic wave-to-electric power converter, and wherein the electromagnetic wave receiving unit receives electromagnetic waves transmitted from the electromagnetic wave transmitting unit to operate the magnetic signal transmitting unit.
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