IIT Madras Sensors Lectures: Sensors and Applications
EE3103103 lectures12 weeks
Weeks
- Week 14 lecturesIntroduction to sensors · An overview of different types of sensors · Classification of sensors · Performance characteristics of sensors
- Week 25 lecturesResistive linear position sensor · Resistive potentiometer · Application of displacement sensors - joystick · Application of displacement sensors - inclinometer · Resistive - capacitive position sensor
- Week 35 lecturesResistive strain gauges · Quarter wheatstone bridge · Rosette strain gauges · Application of strain gauges | designs using cantilever · Application of strain gauges | the load cell
- Week 45 lecturesApplication of load cell · Torque transducers · Resistance temperature detector (RTD) · Representing RTD response with higher - order polynomials · Effect of self - heating & lead wire resistance in RTD measurements
- Week 57 lecturesUnderstanding instrumentation amplifiers: operation & features · Instrumentation amplifier in bridge circuits · Six wire full bridge measurement · Summary of resistive sensors · Introduction to electromagnetic sensors · Maxwell's first equation - gauss's law for electrostatics · Maxwell's second equation - gauss's law for magnetism
- Week 69 lecturesMaxwell's third equation - faraday's law of induction · Maxwell's fourth equation - ampere's law · Types & applications of electromagnetic sensors · Principle of operation of a search coil · Circuit model for a search coil measurement set up · Typical structure & design parameters of an inductive coil · Electrical equivalent circuit of an inductive coil · Amplitude - frequency characteristics of an inductive coil · Search coil with pre - amplifier
- Week 79 lecturesSearch coil with a ferromagnetic core & associated measurement unit · Using a Search Coil to sense DC magnetic fields & the associated calibration · Some applications of the search coils · Gradiometers · Metal detector · Eddy current testing · Eddy Current - based evaluation of magnetic & conductive properties of a specimen · Eddy Current - based detection of cracks in a specimen · Proximity sensors
- Week 87 lecturesConventional inductive loop vehicle detector · Special inductive loop vehicle detector · Series connected multiple inductive loop vehicle detection system · Multiple inductive loop detector for vehicle speed measurement · Inductive sensors · Linear Variable Differential Transformer (LVDT) · LVDT with phase - sensitive demodulator
- Week 912 lecturesDesigns of a fluxgate magnetometer - Single core · Designs of a fluxgate magnetometer - Double core · Fluxgate magnetometer - Theory of operation · Mathematical equations governing a fluxgate magnetometer · Noise characteristics of a fluxgate sensor · Space Applications of fluxgate sensors · Submarine Applications of fluxgate sensors · Navigating an oil well using fluxgate sensors · MEMS type fluxgate sensors · Advantages and Disadvantages of fluxgate magnetometers · Introduction to Magnetoresistance Sensors · Anisotropic Magnetoresistance Sensors (AMR)
- Week 1012 lecturesGiant Magnetoresistance (GMR) Effect based Sensor · Spin Dependent Scattering in GMR Sensors · Spin valve GMR sensor · Tunneling Magnetoresistance based Sensor (TMR) · Design parameters of GMR sensors · Applications of GMR Effect - Magnetic hard disk drives · Applications of GMR Effect - Biomedical · GMR based Biosensors - Theory of Operation · Integrated GMR Biosensors · Sources of noise in GMR biosensors · GMR biosensor - signal pre-conditioning · Applications of magnetoresistance effect based sensors
- Week 1110 lecturesIntroduction to Hall sensors · The physics of hall effect · Design & operation of hall sensors · Open loop hall effect current sensor · Closed loop hall effect current Sensor · Introduction to capacitive sensors · Interdigital capacitive sensors · Analysis of fringing electric field in the capacitance calculation · Effect of cable capacitance in the capacitance measurement · Push pull type capacitive displacement sensor
- Week 1217 lecturesLinear variable differential capacitive sensor · Capacitive Touch Sensor · Differential Capacitive Pressure Sensor · Introduction to piezoelectric sensors · Operation of piezoelectric sensors · Charge amplifier for piezoelectric sensors · Accelerometers · Introduction to sound sensors · Ultrasonic sensors & applications · Surface acoustic wave (SAW) sensors · Tuning fork sensors · Introduction to light sensors · Photodiode - principle of operation / applications · Phototransistor - principle of operation / applications · Photoresistor (LDR) - principle of operation / applications · Photoelectric sensors · Fibre optic sensors