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LVDT: Essential Insights and Applications

Tuesday, June 25, 2024

What is an LVDT?

An LVDT (Linear Variable Differential Transformer) is a highly reliable and accurate sensor used to measure linear displacement. Known for its robustness and precision, the LVDT is a popular choice across various industries where accurate measurement is crucial.

How Does an LVDT Work?

An LVDT consists of a primary coil and two secondary coils wound on a hollow cylinder, with a ferromagnetic core moving inside it. When an AC current is applied to the primary coil, it induces voltages in the secondary coils. The differential voltage between these secondary coils changes as the core moves, allowing the LVDT to measure linear displacement with high precision.

Key Features of LVDT

  1. High Precision: LVDTs provide extremely accurate measurements, often down to the micrometer level.
  2. Durability: These sensors are built to last, capable of operating in harsh environments.
  3. Infinite Resolution: The analog output of LVDTs allows for continuous, infinitely variable measurements.
  4. Frictionless Operation: The core of the LVDT moves without contact, ensuring long-term reliability and minimal wear and tear.

Applications of LVDT

LVDTs are utilized in a wide range of industries due to their precision and reliability. Some key applications include:

  • Aerospace: Measuring the position of aircraft control surfaces and landing gear.
  • Automotive: Monitoring suspension movement and throttle position.
  • Industrial Automation: Ensuring precise control and measurement in manufacturing processes.
  • Medical Devices: Used in medical imaging and other precision equipment.

Why Choose Sentech Sensors for LVDTs?

At Sentech, we offer a range of high-quality LVDT sensors designed to meet the rigorous demands of various industries. Our LVDTs provide unmatched accuracy and durability, making them ideal for both standard and custom applications.

Learn More About LVDT Usage

For a deeper understanding of where LVDTs are used and their benefits, check out our detailed article: Where is an LVDT Used?.

Explore More Products

In addition to LVDTs, we offer a variety of sensors to suit different needs. Explore our offerings:


LVDTs are essential tools in modern engineering and industrial applications, offering unparalleled precision and reliability. Whether you're in aerospace, automotive, industrial automation, or medical fields, Sentech Sensors provides the perfect LVDT solution to meet your needs. Visit our LVDT Sensors page to explore our products and learn how we can support your measurement requirements.

For more insights and updates, visit Sentech Inc .

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