Summary of "LINEAR VARIABLE DIFFERENTIAL TRANSDUCER (LVDT) | WORKING CONSTRUCTION|APPLICATIONS|PROS|CONS|S&T Lec"
Summary of the Video on Linear Variable Differential Transducer (LVDT):
- Introduction to LVDT:
- LVDT stands for Linear Variable Differential Transducer.
- It is a type of Variable Inductance Transducer.
- It is classified as a passive type transducer (does not require external power for operation).
- Working Principle:
- The LVDT operates based on the variation of inductance.
- It consists of a Primary Coil and two secondary coils arranged symmetrically.
- A movable Ferromagnetic Core inside the coils changes the mutual inductance between the coils.
- When the core moves linearly, the output voltage varies proportionally to the displacement.
- The output is an AC voltage whose magnitude and phase indicate the direction and amount of displacement.
- Construction Details:
- Primary Coil is energized with an AC supply.
- Two secondary coils are connected in series opposition.
- The core is attached to the object whose displacement is to be measured.
- The physical design ensures frictionless movement of the core for accurate measurement.
- Applications:
- Used for precise measurement of linear displacement.
- Common in industrial automation, aerospace, and robotics.
- Suitable for harsh environments due to its robust and contactless operation.
- Advantages (Pros):
- High accuracy and resolution.
- Frictionless operation leading to long life and reliability.
- Infinite resolution theoretically.
- Robust against environmental contaminants.
- Simple construction and easy to maintain.
- Disadvantages (Cons):
- Requires AC excitation.
- Sensitive to external magnetic fields.
- Limited to measuring linear displacement only.
- Output signal requires conditioning for practical use.
Speakers/Sources Featured:
- The video appears to be a lecture or tutorial from "S&T Lec" (Science & Technology Lecture).
- No individual speaker names are provided in the subtitles.
Category
Educational
