Which of the following is primarily a displacement transducer?

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ISRO VSSC Technical Assistant 11 Feb 2024 Official Paper
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  1. RTD
  2. Opto-coupler
  3. Microphone
  4. Linear Variable Differential Transformer

Answer (Detailed Solution Below)

Option 4 : Linear Variable Differential Transformer
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Detailed Solution

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The correct answer is: 4) Linear Variable Differential Transformer (LVDT)

Explanation:

  • LVDT is a type of displacement transducer used to measure linear displacement accurately. It converts linear motion into an electrical signal.

  • RTD (Resistance Temperature Detector) measures temperature.

  • Opto-coupler is used for isolating different parts of an electrical system, typically not for displacement.

  • Microphone converts sound (acoustic energy) into electrical signals.

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