Method and system for exploiting the signals of linear inductive sensors, which system is adaptable for different sensor structures
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United States of America Patent
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Jun 26, 1990
Grant Date -
N/A
app pub date -
May 31, 1989
filing date -
Jun 17, 1988
priority date (Note) -
Expired
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Abstract
A method and system for exploiting the signals of linear inductive sensors, which system is adaptable for different sensor structures. The system is formed of a linear inductive displacement sensor provided with a primary coil and two identical symmetrical secondary coils which are in series and in antiphase. A mobile core and an alternative voltage source are mounted between the terminals of the primary coil wherein the amplitude of the voltage at the primary coil terminals is greater than the maximum amplitude of the voltage that can be taken at the secondary coil terminals. The method has the steps of forming the sum of the two alternative voltages present at the primary and secondary coils. These voltages are rectified by means of full wave rectifying and deriving the difference between the sum of recitified voltages. A continuous means valve corresponding to the difference is also derived.
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