STUPIDSID
1 (a)
Classify transducers with suitable example.
5 M
1 (b)
Define
i) Accuracy
ii) Sensitivity
i) Accuracy
ii) Sensitivity
5 M
1 (c)
Explain working principle of-
i) Piezo electric transducers
ii) Piezo resistive transducers
i) Piezo electric transducers
ii) Piezo resistive transducers
5 M
1 (d)
Find seeback voltage for a thermocouple with proportionality constant of 40μV/°C if the junction temperatures are 40°C and 80°C.
5 M
2 (a)
Draw and explain working of LVDT. What causes residual voltage to occur?
10 M
2 (b)
A voltmeter having a sensitivity of 1000Ω/V reads 100V on its 150V scale when connected across an unknown resistor in series with milliammeter. When milliammeter reads 5 mA, calculate
i) Actual resistance of the unknown resistor.
ii) Error due to to loading effect of voltmeter.
i) Actual resistance of the unknown resistor.
ii) Error due to to loading effect of voltmeter.
10 M
3 (a)
Explain any five static characteristics of transducer with suitable examples.
10 M
3 (b)
What is the need of lead wire compensation? How it is to be done in RTD? What is self heating effect in RTD?
10 M
4 (a)
For a certain thermistor β=3140 K and at 27°C is known to be 1050 Ω. The thermistor is used for temperature measurement and the resistance measured is as 2330 &Omega. Find the measured temperature.
10 M
4 (b)
Draw set up and explain working of air purge method of level measurement.
10 M
5 (a)
Explain radioactive type level detector in detail.
10 M
5 (b)
A capacitive transducer uses two quartz diaphragm of area 750mm2 separated by a distance of 3.5 mm. A pressure of 900 KN/m2 when applied to top diaphragm produces a deflection of 0.6 mm. The capacitance is 370 pF when no pressure is applied to the diaphragm. Find the value of capacitance after the application of pressure 900 KN/m2.
10 M
Write short notes (Any Two):
6 (a)
Optical pyrometer.
10 M
6 (b)
Rotary encoder.
10 M
6 (c)
Types of error.
10 M
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