Apparatus for measuring changes in radial and/or axial position of a rotor in a drive system including an EMF producing stationary conductor
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United States of America Patent
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Sep 28, 1993
Grant Date -
N/A
app pub date -
May 13, 1992
filing date -
Sep 19, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for measuring change of position of a rotor in a drive system having a drive rotor and a driven rotor generally concentrically mounted with respect to the drive rotor, the drive and driven rotors being magnetically coupled together. The apparatus includes a conduction device stationarily mounted between the rotors and a device for measuring the EMF (Electro Motive Force) produced in the conduction device as the rotors rotate. The apparatus also includes a device for determining, from the measurement, the relative position of the two rotors and/or the position of one of the rotors.
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