eFunda: Applications of Linear Variable Differential Transformer (LVDT)
engineering fundamentals LVDT: Applications
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Although the LVDT is a displacement sensor, many other physical quantities can be sensed by converting displacement to the desired quantity via thoughtful arrangements. Several examples will be given.

  • Displacement
  - extensometers, temperature transducers, butterfly valve control, servo valve displacement sensing
  • Deflection of Beams, Strings, or Rings
  - load cells, force transducers, pressure transducers


Diaphragm Pressure Gage

 

  • Thickness Variation of Work Pieces
  - dimension gages, thickness and profile measurements, product sorting by size


Profile Gage

 

  • Fluid Level
  - fluid level and fluid flow measurement, position sensing in hydraulic cylinders


Fluid Level Gage

 

  • Velocity & Acceleration
  - automotive suspension control

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