Register Number
SATHYABAMA UNIVERSITY
(Established under section 3 of UGC Act, 1956)
Course & Branch: B.E - EEE
Title of the Paper: Measurements and Instrumentation Max. Marks: 80
Sub. Code: 514701
Time: 3 Hours
Date: 02/03/2011
Session: FN
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PART - A
(10 X 2 = 20)
Answer ALL the Questions
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
What are the classifications of Transducers?
Define the terms resolution & sensitivity
Give the application of signal generators
Write the classification of DVM.
Derive the balance equation for Kelvin’s double bridge.
Write two applications for instrumentation amplifier.
What are the colours are emitted of light for an LED?
Write the different types of dot matrix displays.
Write the advantages of RTD.
What are the thermocouples?
PART – B
Answer All the Questions
(5 x 12 = 60)
11. The expected value of the voltage to be measured is 150 v.
However the measurement gives a value of 149 v. Calculate
(i) Absolute error
(ii) Percentage error
(iii) Relative accuracy
(iv) Percentage accuracy
(v) Error expressed as percentage of full scale reading, if the
scale reading is 0 – 200 v.
(or)
12. Write short notes on statistical analysis of random errors.
13. Explain the following with neat diagram
(i) Frequency selective wave analyzer
(ii) Heterodyne wave analyzer
(or)
14. Explain the following DVM with a neat circuit diagrams
(a) Successive approximation type DVM
(b) Stair case ramp DVM
15. Explain any one method of Digital to analog converter with neat
circuit diagram
(or)
16. Explain the FDM with neat block diagram.
17. Write a short notes on:
(a) Drum printers
(b) Ink jet printers
(c) Laser printers.
(or)
18. Write a short notes on:
(a) Gas discharge plasma displays
(b) Segmented gas discharge displays
(c) Bar graph display
19. Explain the principle of operation of strain gauge and its types.
(or)
20. (a) What are the selective criterion of transducer and explain
(b)Explain inductive transducer.