Sr. Topics Teaching Hours Module Weightage
Transducer Basics
1.1 Basic requirements of transducers
1.2 Classification based on transduction phenomenon, type of application, types of input and output signal, electrical principle involved
i) Active and passive transducer
ii) Based on application
iii) primary and secondary transducers
iv) analog and digital transducer
1.3 Static characteristic - accuracy, precision, error, linearity, reproducibility, repeatability, threshold, dead zone, hysteresis, creep, span, range.
1.4 Dynamic characteristic (fidelity), speed of response, lag, dynamic error
Electrical Transducers
2.1 Resistive Transducers, Inductive Transducers, LVDT, RVDT
i) Capacitive Transducers.
ii) Piezoelectric Transducers.
2.2 Strain Gauge Transducers (unbonded and bonded)
Thermoelectric Transducers
3.1 Thermocouple (E,J,K,R,S,T,M,N,B,C, types)
3.2 RTD (Pt, Cu, Ni types)
3.3 Thermistor and semiconductor sensors
Electro-optical and Radio Acoustic Transducers
4.1 Opto-electronic devices: Photo emissive cells, LED, LCD, LDR, IR emitter, Photoconductive cells, Photodiode, Photo transistor, Photovoltaic cells, LASER, Opto-coupler
4.2 Digital Encoders (incremental/absolute)
4.3 Radioactive acoustic transducers, Geiger Muller counter
4.4 Ultrasonic transducers
4.5 Ion Selective Electrodes
Industrial Primary Transducers
5.1 Flow Transducers – Orifice (Concentric, Eccentric Segmental, Quadrant), Venturi, Flow nozzle, Pitot tube, Flapper nozzle.
5.2 Level Transducers – Float type, Displacement type, Bubbler.
5.3 Pressure Transducers – Bellows, diaphragm (flat, corrugated, capsule), Bourdon tube (C type, spiral, helical), Swirl & de swirl, Proving ring, Piston cylinders.
5.4 Temperature Transducers – Bimetallic Thermometers, Filled system Thermometers
5.5.1 Magnetic flowmeter
2. Mass flowmeter
3. Radar level transmitter
4. Ultrasonic level transmitter
5. Displacer type level transmitter