Cochin University of Science and Techology (CUST) 2006 B.Tech Electronics and Communications Engineering ELECTRONIC MEASUREMENTS & INSTRUMENTATION - Question Paper

BTech Degree VIth SEMESTER EXAMINATION, JUNE 2006
ELECTRONIC MEASUREMENTS & INSTRUMENTATION

1a.Explain direct and indirect methods of measuring.
1b.Explain static characteristics of a measurement system.
1c.Explain briefly the elements of a generalized measurement system.
2a.Discuss the subsequent kind of errors giving suitable examples:
(i)Instrumental errors
(ii)Environmental errors
2b.Explain the loading effect.
2c.Explain the methods of reducing noise and interference in measurement system.
3a.Explain the classification of transducers.
3b.Explain the working principle of LVDT. Briefly define how it ca be employed to measure linear displacements.
4a.What is piezo electric effect? With diagram discuss how this effect can be utilized to measure velocity.
4b.Explain Maxwell’s Inductance Bridge.
5a.Explain digital storage oscilloscope with the help of a block diagram.
5b.Explain the sweep frequency generator.
6a.Explain the working of X-Y recorders.
6b.Explain the working of strip chart recorders.
7a.Explain the various kinds of thermocouples.
7b.Explain the optical pyrometer.
8a.Explain the flow measurement using electro magnetic flow meter.
8b.Explain the pressure measurement using the elastic kind pressure gauges.
9a.Describe the working principle of gas chromatograph.
9b.Give the basic schematic of a power plant.
10a.Explain with block diagram, the working of a telemetry system.
10b.Explain the basic concepts of PLC.

Earning:   Approval pending.