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Turns Ratio

An LVDT is us...

Question

An LVDT is used to measure displacement. The output of the LVDT is connected to a voltmeter of range 0 to 5 V through amplifier having a gain of 250. For a displacement of 0.5 mm, the output of the LVDT is 2 mV. The sensitivity of the instrument in V/mm would be:
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Solution

The correct option is A 1
sensitivity of instrument

$= sensitivity of LVDT \times gain of op-amp$

$= (\frac{2 m V}{0.5 m m}) \times 250 = 1 V / m m$

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