JNTUA B.Tech. R20 Regulations

########## B.Tech IV-I Sem L T P C

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########## (20A04704) ELECTRONIC SENSORS (Open Elective Course - III) Course Objectives:

- • Learn the characterization of sensors.
- • Known the working of Electromechanical, Thermal, Magnetic and radiation sensors
- • Understand the concepts of Electro analytic and smart sensors
- • Able to use sensors in different applications

########## Course Course Outcomes

- • Learn about sensor Principle, Classification and Characterization.
- • Explore the working of Electromechanical, Thermal, Magnetic, radiation and Electro analytic sensors
- • Understand the basic concepts of Smart Sensors
- • Design a system with sensors

UNIT I : Principles, Classification, Parameters, Characteristics, Environmental Sensors / Transducers : Principles, Classification, Parameters, Characteristics, Environmental Sensors / Transducers Parameters (EP), Characterization Introduction, Resistive Potentiometer, Strain Gauge, Resistance Strain Electromechanical Sensors: Sensors: Gauge, Semiconductor Strain Gauges -Inductive Sensors: Sensitivity and Linearity of the Sensor - Types-Capacitive Sensors: Electrostatic Transducer, Force/Stress Sensors Using Quartz Resonators, Ultrasonic Sensors

UNIT II : Introduction, Gas thermometric Sensors, Thermal Expansion Type Thermometric Thermal Sensors : Introduction, Gas thermometric Sensors, Thermal Expansion Type Thermometric Thermal Sensors Sensors, Acoustic Temperature Sensor ,Dielectric Constant and Refractive Index thermo sensors, Helium Low Temperature Thermometer ,Nuclear Thermometer ,Magnetic Thermometer ,Resistance Change Type Thermometric Sensors, Thermo emf Sensors, Junction Semiconductor Types, Thermal Radiation Sensors, Quartz Crystal Thermoelectric Sensors, NQR Thermometry, Spectroscopic Thermometry, Noise Thermometry, Heat Flux Sensors

########## UNIT III

Magnetic sensors: Introduction, Sensors and the Principles Behind, Magneto-resistive Sensors, Anisotropic Magneto resistive Sensing, Semiconductor Magneto resistors, Hall Effect and Sensors, Inductance and Eddy Current Sensors, Angular/Rotary Movement Transducers, Synchros.

########## UNIT IV

Radiation Sensors: Introduction, Basic Characteristics, Types of Photo resistors/ Photo detectors, Xray and Nuclear Radiation Sensors, Fibre Optic Sensors Electro analytical Sensors: The Electrochemical Cell, The Cell Potential - Standard Hydrogen Electrode (SHE), Liquid Junction and Other Potentials, Polarization, Concentration Polarization, Reference Electrodes, Sensor Electrodes, Electro ceramics in Gas Media.

UNIT V Introduction, Primary Sensors, Excitation, Amplification, Filters, Converters, Smart Sensors: Introduction, Primary Sensors, Excitation, Amplification, Filters, Converters, Smart Sensors: Compensation, Information Coding/Processing - Data Communication, Standards for Smart Sensor Interface, the Automation Sensors - Applications: Introduction, On-board Automobile Sensors (Automotive Sensors), Home Appliance Sensors, Aerospace Sensors, Sensors for Manufacturing - Sensors for environmental Monitoring

########## Textbooks:

- 1. 'Sensors and Transducers - D. Patranabis' - PHI Learning Private Limited., 2003.
- 2. Introduction to sensors- John veteline, aravindraghu, CRC press, 2011

References: 1. sensors: Terokarvinen, kemo, karvinen and villeyvaltokari, 1st edition, maker References: 1. sensors: Terokarvinen, kemo, karvinen and villeyvaltokari, 1st edition, maker 1. media,2014. Sensors handbook- Sabriesoloman, 2nd Ed. TMH, 2009

########## JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY ANANTAPUR B.Tech IV-I Sem L T P C

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