22-02-2012, 08:27 PM
Hi i am santanu das,a studennt of persuing b-tech,my mail id is santanudasnit[at]yahoo.in and i want a book about this-(Definition, principles of sensing and transduction, classification
Mechanical and Electromechanical sensors
Resistive (potentiometric) type: Forms, materials, resolution, accuracy,
sensitivity
Strain Gauges: theory, types, materials, design consideration, sensitivity,
gauge factor, variation with temperature, adhesives, rosettes, applicationsforce,
velocity and torque measurements
Inductive sensors: common types- reluctance change type, mutual
inductance change type, transformer action type, - brief discussion with
respect to materials, construction and input output variables,
Ferromagnetic plunger type-short analysis; proximity measurement
LVDT: Construction, materials, output-input relationship, I/O curve,
discussion,Capacitive sensors: Variable distance- parallel plate type, Variable area- parallel plate,
serrated plate/teeth type and cylindrical type, variable dielectric constant type:
calculation of sensitivities; proximity measurement
Stretched Diaphragm type: microphones, response characteristics
Piezoelectric elements: piezoelectric effects, charge and voltage coefficients, crystal
model, materials, natural and synthetic types – their comparison, force and stress
sensing, piezoelectric accelerometer
Tachometers – Stroboscopes, Encoders, seismic accelerometer, Measurement of
vibration.
Module III
Industrial weighing systems : Link–lever mechanism, Load cells – pneumatic, piezoelectric,
elastic and magneto-elastic types - their mounting, pressductor, different
designs of weighing systems, conveyors type, weighfeeder type.
Thermal sensors:
Resistance change type: RTD - materials, construction, types, working principle
Thermister - materials, construction, types, working principle
Thermoemf sensors: Thermocouple - types, working principle
Thermopile - types, working principle
Module IV
Magnetic sensors: Sensors based on Villari effect for assessment of force, torque, rpm
meters, proximity measurement
Hall effect and Hall drive, performance characteristics
Geiger counters, Scintillation detectors
Introduction to Smart sensors).
