Course

Industrial Instrumentation

Indian Institute of Technology Kharagpur

Basic terminologies (range, span, settling time dead zone, input impedance...), 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 comparism, 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) etc], 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 Lectures