Dave Hoffman of Hagenhoff LLC, Canton, Ohio, demonstrates a wireless test indicator designed to help toolmakers and lab technicians make accurate remote measurements. See the article in MD.3:33
The original job of wires and cables was to transport electrical signals from Point A to Point B. Thinking cables not only carry those signals between points, but also provides emphasis, compensation, translation, and conversion of the signal from one form to another.
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The article that describes these things is here:
http://machinedesign.com/article/gullivers-engines-0622
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