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SYLLABUS | B. TECH. ELECTRONICS & COMMUNICATION ENGINEERING | SENSORS & TRANSDUCERS

13040709 SENSORS & TRANSDUCERS L T P C
Version1.0 Date of Approval: — 3 1 0 3
Pre-requisites//Exposure  
co-requisites  

 

 Text books:
  1. Sensor & transducers, D. Patranabis, 2nd edition, PHI
  2. Instrument transducers, H.K.P. Neubert, Oxford University press.
  3. Measurement systems: application & design, E.A.Doebelin, Mc Graw Hill. 

Course Content

Unit I:                                                                                                                    

12 lecture hours

Definition, principle of sensing & transduction , classification 1 Mechanical and Electromechanical sensor;  Resistive (potentiometric type): Forms, material, resolution, accuracy, sensitivity; Strain gauge: Theory, type, materials, design consideration, sensitivity, gauge factor, variation with temperature, adhesive, rosettes.; Inductive sensor: common types- Reluctance change type, Mutual inductance change type, transformer action type, Magnetostrictive type, brief discussion with respect to material, construction and input output variable, Ferromagnetic plunger type, short analysis; LVDT: Construction, material, output input relationship, I/O curve, discussion; Proximity sensor.

Unit II:                                                                                                                   

8 lecture hours

Capacitive sensors: variable distance-parallel plate type, variable area- parallel plate, serrated plate/teeth type and cylindrical type, variable dielectric constant type, calculation of sensitivity; Stretched diaphragm type: microphone, response characteristics; Piezoelectric element: piezoelectric effect, charge and voltage co-efficient, crystal model, materials, natural & synthetic type, their comparison, force & stress sensing, ultrasonic sensors.

Unit III:                                                                                                                    

6 lecture hours

6 lecture hours

Thermal sensors: Material expansion type: solid, liquid, gas & vapor ; Resistance change type: RTD materials, tip sensitive & stem sensitive type, Thermister material, shape, ranges and accuracy specification;

Thermoemf sensor: types, thermoelectric power, general consideration , Junction semiconductor type IC and PTAT type.;  Radiation sensors: types, characteristics and comparison; Pyroelectric type.

Unit IV:                                                                                                                  

8 lecture hours

Magnetic sensors: Sensor based on Villari effect for assessment of force, torque, proximity, Wiedemann effect for yoke coil sensors, Thomson effect, Hall effect, and Hall drive, performance characteristics; Radiation sensors: LDR, Photovoltaic cells, photodiodes, photo emissive celltypes, materials, construction,, response, Geiger counters, Scintillation detectors;  Introduction to smart sensors;

ADMISSIONS 2021