Electronic Instruments and Measurements - Dec 2015
Electronics Engineering (Semester 3)
TOTAL MARKS: 80
TOTAL TIME: 3 HOURS (1) Question 1 is compulsory.
(2) Attempt any three from the remaining questions.
(3) Assume data if required.
(4) Figures to the right indicate full marks. 1 (a) Compare Electronic Voltmeter & Conventional Analog Voltmeter.(5 marks) 1 (b) Draw Schering Bridge. List applications of it.(5 marks) 1 (c) Define transducer. List different types of transducers.(5 marks) 1 (d) Explain generalized data acquisition system in brief.(5 marks) 1 (e) Explain sensitivity of voltmeter with one example.(5 marks) 2 (a) Explain strain gauge transducer. Derive its gauge factor.(10 marks) 2 (b) Explain capacitive transducer for displacement measurement. Derive its expression.(10 marks) 3 (a) Compare RTD and Thermocouple with construction working & application.(10 marks) 3 (b) List flow meters. Draw and explain ultrasonic flow meter in detail state advantages of it.(10 marks) 4 (a) Draw and explain low, medium and high resistance measurement techniques in detail.(10 marks) 4 (b) Draw and explain Maxwell's bridge. Write its advantages, disadvantages and applications.(10 marks) 5 (a) Explain the importance of Lissajous figures in detection of frequency and phase.(10 marks) 5 (b) Draw & explain DSO. Write the applications of DSO.(10 marks)
Write note on any two.
6 (a) FET type voltmeter.(10 marks) 6 (b) Liquid Level measurement application using LVDT.(10 marks) 6 (c) Data logger(10 marks)