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Circuits Sensor Interface & Bias Strain, Displacement & Accleration Sensors LVDT Interface
Circuits Signal Conditioning RMS-DC Conversion

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LVDT Signal Conditioning

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An LVDT transformer is exited with a fixed frequency sine wave. The distance of displacement of the movable core will change the amplitude of the transformer output which is is converted to a dc voltage by the LT1967 True RMS converter. The direction of the core movement is indicated by the phase shift of the sine wave and is detected by a simple phase comparator circuit.



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