Electromagnetic moving-coil device
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United States of America Patent
Stats
-
Dec 28, 2004
Grant Date -
May 20, 2004
app pub date -
Nov 14, 2002
filing date -
Nov 14, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The electromagnetic moving-coil device in which a position coil is provided to function as a secondary coil in accordance with the principles of a linear variable differential transformer so that when a high-frequency excitation signal is superimposed upon the driver signal applied to the moving coil, a position coil picks up the position of the moving coil and allows that position to be computed or displayed.
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