Pulse Code Modulation [PCM] System



The  experimental setup helps to study how signal from a transducer transmit and receive using Pulse Code Modulation technique.

The set up contains three major blocks:

  1. LVDT Trainer

The single board trainer with steel case and integrated power supply and Digital panel meter for measurement of voltage. The LVDT is mounted on a stand fitted with a micrometer for small  mechanical movement. The displacement is measured in terms of voltage.

The trainer consists of the following specifications:

  1. Transduce : Linear Variable Differential Transformer ( LVDT ) fitted with  stand.
  2. Excitation : Small mechanical movement of the LVDT Plunger by a micrometer.
  3. Electronic Block :  Stable I.C. based oscillator with  power amplifier.
  4. Phase sensitive detector.
  5. Differential Amplifier.
  6. Amplifier with adjustable gain.
  7. Output Indicator :  Digital Panel Meter.

 

  1. Pulse Code Modulation Trainer

The single board trainer helps to study Pulse Code Modulation.

The trainer contains

  1. IC regulated power supplies
  2. Variable  Clock frequency
  3. Sampler circuit
  4. ADC
  5. Parallel to serial converter

 

  1. Pulse Code  Demodulation Trainer

The single board trainer helps to study Pulse Code Demodulation. The trainer contains

  1. IC regulated power supplies.
  2. Clock frequency Generator
  3. serial to parallel converter
  4. DAC
  5. Filter

 

Additional Accessories required  

  • Signal Generator
  • Dual trace Oscilloscope


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