Course Details

Subject {L-T-P / C} : EE3006 : Industrial Insrumentation {3-0-0 / 3}
Subject Nature : Theory
Coordinator : Prof. Gopalakrishna Srungavarapu


Static characteristics of measuring instruments, 1st order and second order instruments with step, ramp and sinusoidal input/ output characteristics, Strain gauge, derivation of gauge factor, strain gauge rosette, unbalanced wheatstone bridge, Link type load cell, beam type load cell, ring type load cell and their sensitivities, Frequency response of link type load cell, Torque cell and its data transmission (slip ring and radio telemetry), LVDT, phase compensation, phase sensitive demodulation, thermistor and its linearization, RTD, its construction, three wire and four wire method Muller bridge, Thermocouple, their relative comparison, cold junction compensation using AD590, grounded thermocouple, potentiometer as displacement sensor, Capacitance as displacement and level transducer, push pull arrangement, Pressure transducer [Bourdon gauge, diaphragm gauge (metal and semiconductor)], all vacuum gauges, photo electric transducer and its application, Liquid in glass thermometer, pressure spring thermometer, venturimeter, Orifice meter, pitot tube, Rotameter, Weir, electromagnetic flowmeter, Hot wire anemometer, its phase compensation and expression of volumetric flow rate or velocity in each case, Variable reluctance displacement sensor, tachogenerator, turbine flowmeter. Measurement of viscosity, conductivity, and pH of a liquid. Flapper nozzle system and Control Valves.

Course Objectives

  1. Comprehend the standards of measurements, errors and methods to reduce them.
  2. Understand the constructional details and principle of operation of basic analog and digital measuring instruments used in industries
  3. To understand the working and applications of various transducers and data acquisition devices.

Course Outcomes

At the end of the course, the student will be able to
1 Assimilate the basic knowledge about different instruments/transducers used in industries.
2 Choose a proper transducer based on their characteristics for measurement of different parameters.
3. Apply his/her knowledge of data acquisition to perform PC based measurements

Essential Reading

  1. E. O. Doebelin, Measurement Systems, Application and Design, McGraw Hill International Edition , Singapore, 2003.
  2. D. Patranabis, Principles of Industrial Instrumentation, Tata Mc Graw Hill , New Delhi, 2000

Supplementary Reading

  1. B. C. Nakra and K. K. Chaudhury, Instrumentation Measurement and Analysis, Tata McGraw Hill Publishing Company Ltd. , 2003
  2. A. K. Ghosh, , Introduction to Instrumentation and Control, PHI , 2000