Time : 3 Hrs.                                                                                                                                         Theory : 100 Marks Term Work : 25 Marks Practical & Oral : 25 Marks

*Oral : 25 Marks



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1.   Components of Analog Signal Conditioning  :

Signal level and bias changes, linearization, conversion, filtering and impedance matching, concept of loading. Passive signal conditioners − voltage divider, Wheatstone bridge circuits (Current, Voltage, Balanced  and  Unbalanced),  RC  filters,  and  Active  signal  conditioners-  op-amp  based  circuits. Standard Signals (Analog).


2.   Operational Amplifier :

Ideal and practical op-amp, Differential Amplifier-a.c. and d.c. analysis, improving voltage gain using active load etc, current sources, unbalanced op-amp frequency response and stabilizing unbalanced operation, circuit diagram of IC741 and working in detail, a.c. and d.c. characteristics, specifications, measurement of op-amp parameters.


3.   Operational Amplifier Circuits in Instrumentation :

Voltage follower, inverting and non-inverting Amplifier, Adder, Subtractor, Differential  Amplifier, Instrumentation  Amplifier,  V  to  I  and  I  to  V  converter  with  floating  load  and  grounded  load, Integrator, differentiator and compensated differentiator, Precision  rectifier-  half wave, full wave, absolute  value  circuits,  clipping,  clamping  circuits,  practical  clamping  circuits,  sample  and  hold circuits, peak  detectors, log amplifiers, temperature compensated log  amplifier, antilog amplifier, multiplier, divider, comparator, threshold detector, zero crossing detector, window detector, Schmitt trigger,  free  running  multivibrator,  Wien-bridge  oscillator,  Phase  shift  oscillator,  Active  filters, Astable, Monostable, and Bistable multivibrators, Norton amplifier, Pulse, triangle  and Sine wave generator, PLL.

Guidelines for analog signal conditioning design, design problems based on these guidelines.


4.   Components of Digital Signal Conditioning :

Converters  –  ADC,  DAC,  V  to  F  (LM331  and  555  timer)  and  F  to  V  –  Types  and  Structure, conversion,  resolution  and  other  characteristics.  Characteristics  of  digital  data-  digitized  value, sampled data system and linearization, Standard signals (Digital). Data acquisition system hardware, Data Logger.


5.   Transducer Signal Conditioning Design :

Thermal  sensor   conditioning  −  design   considerations  and  applications  for  RTD,  Thermistor, thermocouple and solid state temperature sensors.

Optical    sensor      conditioning-photoconductor,      photovoltaic,     photodiode,      phototransistor,      and

photomultiplier  tube,  Optical  encoder  conditioning  for  linear  displacement,  linear  velocity  and angular displacement application.

Other Sensors conditioning – Potentiometer, LVDT, strain gauges, piezoelectric transducers and capacitive transducers


6.   Power Supply Design :

Power Supply design using 78xx series, 79xx  series and adjustable IC regulator  723/317. Switch Mode Power Supply (SMPS) Block Diagram with advantages and disadvantages over conventional power supply.


* Oral examination will be based on mini-project.


all syllabus in single     Download  PDF file free  .