Passive optical control system for boomed apparatus
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United States of America Patent
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Issued Date -
Sep 18, 2003
app pub date -
Mar 12, 2002
filing date -
Mar 12, 2002
priority date (Note) -
Abandoned
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Abstract
A passive optical control system for an aerial device comprising an optical signal source, an electrically passive modulator coupled with an electrically passive input mechanism located in or on an electrically isolated work station, and an optical receiver, wherein the source transmits an optical signal across a dielectric gap to the modulator which modulates, attenuates, or otherwise changes the optical signal to produce a changed optical signal corresponding to a control input provided by the input mechanism and sends the changed optical signal back across the dielectric gap to the receiver whereafter the changed optical signal is converted to a proportional electrical signal, thereby safely and efficiently maintaining the electrical isolation of the work station.
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