Electronics Instrumentation System - Dec 2013

Electronics Engineering (Semester 6)

TOTAL MARKS: 100
TOTAL TIME: 3 HOURS (1) Question 1 is compulsory.
(2) Attempt any four from the remaining questions.
(3) Assume data wherever required.
(4) Figures to the right indicate full marks. 1 (a) What are the classification of transducers? Explain any two requirements of a transducer.(5 marks) 1 (b) Explain the working of LVDT. What is the significance of non linear region of the curve?(5 marks) 1 (c) Derive expression for the principle of working of a switched capacitor filter. (5 marks) 1 (d) Explain the working of RTD.(5 marks) 2 (a) Draw and explain pressure sensing elements. (10 marks) 2 (b) Explain the working of Resistive type of transducer for measuring different types of displacement. (10 marks) 3 (a) Draw various configurations of Thermistor. Draw its Resistance vs Temperature graph and justify its application.(10 marks) 3 (b) Explain capacitive type of pressure transducer, with a neat diagram.(10 marks) 4 (a) Derive Expression for First order Low-Pass filter. (10 marks) 4 (b) Draw and explain a multichannel data acquisition. (10 marks) 5 (a) What are the advantages of Instrumentation amplifier? Draw and explain three Op-amp instrumentation amplifier. (10 marks) 5 (b) Explain a basic Data Logger with a block diagram. (10 marks) 6 (a) Draw and explain PID controller.(10 marks) 6 (b) Explain the principle and working of a thermocouple. Mention its advantages.(10 marks)

Write short notes on any two:-

7 (a) Strain gauge.(10 marks) 7 (b) Distributed Control System.(10 marks) 7 (c) Controller Tuning.(10 marks)