JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

UNIT - I

Design of Signal Conditioning Circuits: Design of V/I Converter and I/V Converter, Analog and Digital filter design and Adaptive filter design, Signal conditioning circuit for pH measurement, Air- purge Level Measurement, Signal conditioning circuit for Temperature measurement- Thermocouple, RTD and Thermistor, Cold Junction Compensation and Linearization – Software and Hardware approaches.

UNIT - II

Signal Conditioning for Resistive Sensors: Measurement of resistance, Voltage dividers, Wheatstone bridge, Balance and deflection measurements, Sensor bridge calibration and compensation instrumentation amplifiers.

UNIT - III

Signal Conditioning for Reactance Variation Sensors: Problems and alternatives, AC bridges, Carrier amplifiers- Application to the LVDT, Variable oscillators, Resolver-to-digital and digital-to- resolver converters.

UNIT - IV

Signal Conditioning for Self-Generating Sensors: Chopper and low-drift amplifiers, Offset and drifts, Amplifiers- Electrometer amplifiers, Charge amplifiers, Noise in amplifiers.

UNIT - V

Design of Transmitters, Alarm & Annunciation Circuits: Study of 2wire and 4 wire transmitters– Design of RTD based Temperature Transmitter, Thermocouple based Temperature Transmitter, Capacitance based level Transmitter and Smart Flow Transmitters, Alarm and Annunciation circuits using Analog and Digital circuits.

TEXT BOOKS:

• 1. Ramon PallásAreny, John G. Webster,” Sensors and Signal Conditioning”, 2nd Edition, John Wileyand Sons, 2000.
• 2. D.Patranabis, “Sensors and Transducers”, TMH 2003.

REFERENCE BOOKS:

• 1. Jon Wilson, “Sensor Technology Handbook”, Newne 2004.
• 2. E.O. Doeblin, “Measurement System: Applications and Design”, McGraw Hill Publications.
• 3. Hermann K P Neubert, “Instrument Transducers: An Introduction to Their Performance and Design”, Oxford Publishers, 2nd Edition. M. TECH. I YEAR I SEMESTER ELECTRONICS & INSTRUMENTATION