Course Details
Subject {L-T-P / C} : EC3303 : Instrumentation Devices { 3-0-0 / 3}
Subject Nature : Theory
Coordinator : Prof. Sougata Kumar Kar
Syllabus
Module1: INTRODUCTION: Basic concept of Instrumentation and Measurement System. Purpose, structure and elements of measurement system. 4 Hours
Module2: STATIC AND DYNAMIC CHARACTERISTICS OF MEASUREMENT SYSTEM ELEMENTS: Systematic characteristics, Generalised Model of System element, statistical characteristics. Measurement error of a system of ideal elements. The error probability density function of a system of non-ideal elements. Error reduction techniques. Transfer function for typical system elements, step and frequency response. Dynamic errors in measurement systems. Techniques for dynamic compensation.
10 Hours
Module3: LOADING EFFECTS, SIGNAL AND NOISE IN MEASUREMENT SYSTEM: Loading effect - Electrical loading, Generalized loading Statistical representation of random signals: Effects of Noise and interference on Measurement circuits, Noise sources and coupling mechanism, Method of reducing effects of Noise and interference. 6 Hours
Module4: SENSING ELEMENTS: Resistive (Potentiometers, Resistance Thermometer, Strain Gauges), Inductive (Variable reluctance, LVDT), Capacitive (variable area, gap, dielectric), Magnetic type (eddy current, magnetostrictive, magnetoresistive), Thermoelastic, Elastic, Piezoelectric, Photoelectric, Hall effect, Synchros. 14 Hours
Module5: SIGNAL CONDITIONING CIRCUITS: Potentiometer Circuit (constant voltage and constant current), Wheatstone Bridge (constant voltage and constant current), Instrumentation Amplifier. 6 Hours
Course Objectives
- Understanding the principles characteristics of sensor and measurement system along with different sensors.
- Leaning non-idealities of sensors, environmental effects, loading effect and different error reduction techniques.
- Understanding the principle of operation and interfacing circuits of resistive, capacitive, inductive, electromagnetic and other sensors etc.
Course Outcomes
CO1: To be well versed with the measurement system, sensors, sensor characteristics, basic signal conditioning circuits and sensor interfaces. <br />CO2: To be able to model static and dynamic characteristics of sensors, and their non-idealities using mathematical equations. <br />CO3: Understanding the operating principle of resistive, capacitive, inductive sensors, thermoelectric sensors and associated signal conditioning circuits. <br />CO4: Understanding the operating principle of photo-electric, piezoelectric, electromagnetic and other sensors along with associated signal conditioning circuits. <br />CO5: Solve practical and state of the art problems related to sensor characteristics and interfacing circuits.
Essential Reading
- J. P. Bentley, Principles of Measurement System, Pearson Education , Third edition, 2003.
- E.O. Doebelin, Measurement Systems, Application and Design, McGraw Hill , Fifth Edition, 2008
Supplementary Reading
- D. V. S Murty, Transducers and Instrumentation, PHI Learning , 2nd Edition, 2010
- D. Patranabis, Sensors and Transducers, PHI Learning , 2nd Edition, 2003
Journal and Conferences
- IEEE Transactions on Instrumentation and Measurement
- IEEE Sensors Journal