Calicut University 2008-4th Sem B.Tech Electronics and computers (ENGINEERING) 2007(Old Scheme) - Question Paper

C 50641

FOURTH SEMESTER B.TECH. (ENGINEERING) DEGREE exam
JUNE 2007(Old Scheme)

AI 04 405 ELECTRONIC INSTRUMENTATION AND MEASUREMENTS

Time:Three Hours Maximum:100 Marks

I.

1. List the static characteristics of an instrument.

2. What is the need of uncertainty analysis?

3. Draw the pulse response of a 2nd order system and comment.

4. What is sweep generator? How is it various from other kinds of generators?

5. describe resolution, linearity and accuracy of a D/A converter.

6. What is subranging ADC? Mention its principles.

7. Why is time base always a sawtooth? discuss with waveforms.

8. What is a watt-hour meter? elaborate its different types?

(8 x 5=40 marks)

II.

1. elaborate the standards of measurements? discuss every 1 briefly.

Or

2. How is methods of lowest square helpful in uncertainty analysis? Illustrate.

III.

1. explain the response of 2nd order instrument to (i)square input; (ii)ramp input.

Or

2. Draw the block diagram of a RF signal generator and discuss the function of every block.

IV.

1. Draw a charge distribution based ADC and explain the need for every and every block used.

Or

2. Differentiate bipolar DAC from other 1 and discuss the operation of a bipolar DAC using block diagram.

V.

1. What is delayed time base? When and where is it used? discuss with a suitable application.

Or

2. Draw the block diagram of a digital spectrum analyzer and discuss the operation.

(4 x 15= 60 marks)

Earning:   Approval pending.