1) A thermocouple element when taken from a liquid at 50 degrees Celsius and plunged into...

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Electrical Engineering

1) A thermocouple element when taken from a liquid at 50 degreesCelsius and plunged into a liquid at 100 degrees celsius at timeequal to zero gave the following e.m.f. values. Determine the 95%response time. Time 0 20 40 60 80 100 120 e.m.f. (mV) 2.5 3.8 4.54.8 4.9 5.0 5.0
2) What are the advantages and disadvantages of a plastic filmtype of potentiometer and when compared with the wired-woundpotentiometer.
3) A shaft encoder is to be used with a 50 mm radius trackingwheel to monitor the linear displacement. If the encoder produces256 pluses per revolution, what will be the number of pulsesproduced by a linear displacement of 300 mm?.
4) Suggest a sensor that could be used, as part of a controlsystem, to determine the difference in level between twocontainers. The output is to provide an electrical signal for thecontrol system.

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3.6 Ratings (389 Votes)

21 Wire woundpotentiometersThis potentiometer comprises of severalrounds of wire wound around the shaft of the nonconductingmaterial The turns of the coil are bonded together by an adhesiveIn this case the slider connected to the body whose displacementis to be See Answer

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