On completion of this subject the student should be able to:
1. Understand and provide a description of a general instrumentation system;
2. Decide on the best measurement method, technique to use and select and use the appropriate apparatus in a given measurement situation;
3. Describe the general approach to measurements, quantities and instruments;
4. Understand and use basic techniques to perform system analysis;
5. Understand and explain some primary sensing elements and basic transducers;
6. Perform basic signal conditioning, filtering, and signal conversion.
General approach to measurement, quantities and instruments: classification of variables and analogies, generalized approach to a measuring system, performance characteristics of instruments, analysis of errors, units; Analytical techniques for system analysis: the Laplace transforms, transfer functions, pole-zero plots, polar plots, general properties of feedback systems, assessment of stability; Primary sensing elements and transducers: mechanical springs, pressure-sensitive elements, flow-rate sensing elements, passive transducers, active transducers, digital transducers; Noise and shielding: noise analysis and different shielding techniques along with guarding techniques; Signal conditioning and conversion: transducer bridges, instrumentation amplifiers, analogue-digital data and sampling, A/D and D/A converters, interference, grounding, screens and shielding.
Jones, Barry E., Instrumentation measurement and feedback, Tata McGraw-Hill, New Delhi, India, 1978.
Bentley, J. P., Principles of measurement systems, Longman, London, UK, 1986.
Continuous assessment 40%
Written examination 60% (1×3 hrs.)
Phone: +675 473 4999 Fax: +675 475 7776
