An LVDT is used to measure displacement. The LVDT feeds a Voltmeter of 0-5 V range through a 250 gain amplifier. For a displacement 0.5 mm the output of LVDT is 2 mV. The sensitivity of instrument is
Options
A. 0.1 V/mm
B. 0.5 V/mm
C. 1 V/mm
D. 5 V/mm
Correct Answer
1 V/mm
Explanation
Final output = 2 x 10-3 x 250 = 0.5 V.
.
Measurements and Instrumentation problems
Search Results
1. An ammeter of 0-25 A range has a guaranteed accuracy of 1% of full scale reading. The current measured is 5 A. The limiting error is
2. A piezoelectric force transducer has a charge sensitivity of 20 pC/N. It is connected to a charge amplifier and overall gain of transducer and amplifier is 50 mV/N. The gain of amplifier is
4. A moving coil instrument has a resistance of 0.5 ? and a full scale deflection of 0.1 A. To convert it into an ammeter of 0-10 A the shunt resistance should be
9. A standard cell of 1.0185 V is used with a slide wire potentiometer. The balance was obtained at 60 cm. When an unknown emf was connected, the balance was obtained at 82 cm. The magnitude of unknown emf is