Apparatus for detecting the position of a probe relative to a workpiece
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United States of America Patent
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-
Aug 30, 1983
Grant Date -
N/A
app pub date -
Apr 30, 1981
filing date -
Apr 30, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Apparatus for detecting the position of a probe relative to a workpiece, for example probe contact with the workpiece, is disclosed. The apparatus includes a transducer for converting probe contact to an electrical signal and a plurality of light emitting semiconductors for wirelessly transmitting an indication of the occurrence of the signal via infrared radiation. The apparatus is capable of operation with either a mechanical switch type probe transducer or a current measuring transformer type probe transducer. The apparatus is easily adapted to transmit the occurrence of probe contact by either amplitude modulation or frequency modulation of the emitted infrared radiation.
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