Electronic Instruments and Measurements - Dec 2016
Electronics & Telecomm. (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.
Solve any four Q1 (a,b,c,d,e)
1(a) Significance of three and half digit display(5 marks)
1(b) Define accuracy,
precision and sensitivity with suitable example.(5 marks) 1(c) Explain working of strain gauge and its application in load management(5 marks) 1(d) List various sensors for pressure and tempreature along with their ranges(5 marks) 1(e) A galvnometer. With a 1 rnA full scale deflec tion and internal resistance of 500Ω is to be used as volmeter. Find series resistance fo 1 v and 10 v ranges.(5 marks) 2(a) Draw and explain working of capacitive transducer for level management.(10 marks) 2(b) Draw neat block digagram of CRO and explain its functioning. Comment on role of sweep in CRO.(10 marks) 3(a) Draw and explain R-2R ladder network DAC for 3bits input taking suitable example.(10 marks) 3(b) Explain Kelvin's double bridge and its application in very low resistance measurement.(10 marks) 4(a) Explain SAR OR Flash type ADC with the help of block diagram and comment on its speed.(10 marks) 4(b) Explain LVDT and define its application in displacement measurement.(10 marks) 5(a) Explain Hetrodyne type waves analyser and its applications.(10 marks) 5(b) Discuss DSO with the help of block diagram along with various modes of operator also explain its applications.(10 marks) 6(a) Draw and discuss Hey Bridge and its application for measurement of inductance.(10 marks) 6(b) Define power and energy and explain working of energy meter.(10 marks)