Method and apparatus for contactless monitoring of tools
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United States of America Patent
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Sep 13, 1988
Grant Date -
N/A
app pub date -
Mar 11, 1987
filing date -
Mar 14, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Method and apparatus for the contactless monitoring of a working tool for breakage or wear, the tool being installed in a machine having at least two parts, with one of the parts being stressed by forces imposed on the working tool during machine operation, by: inductively monitoring the position of the one part relative to the other of the two parts during machine operation to produce at least one induced voltage representative of a change in relative position; determining the value of the induced voltage; and emitting a signal when a predetermined change occurs in the value of the induced voltage.
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