Which one of the following statements is not correct?
A. the operation of LVDT can be adversely affected by stray magnetic a.c. fields or by the presence of larger masses of metal nearby
B. Fitting a magnetic shield with a longitudinal slot along it, over the transducer can largely be beneficial
C. Relatively small displacements are required for appreciable differential output
D. LVDT gives a high output and many times, there is no need for amplification. It possesses a high sensitivity, which is typically of about 40 V/mm
Answer: Option C
This Question Belongs to Electronics And Communications Engineering >> Measurement And Instrumentation
The spring material used in a spring control device should have the following property.
A. Should be nonmagnetic
B. Most be of low temperature coefficient
C. Should have low specific resistance
D. All of the above
Why is a MISC meter not recommended for DC measurement?
A. The meter is calibrated for AC and it’s error for DC would be high
B. The meter does not respond to DC signals
C. The error is high due to hysteresis effect
D. The error is high due to eddy current effect
A moving iron ammeter may be compensated for frequency errors by
A. A shunt resistance
B. A series inductance
C. Shunt capacitance
D. Series resistance
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