How an LVDT Displacement Sensor Measures Linear Position

A LVDT displacement sensor (Linear Variable Differential Transformer) is a high-precision sensor designed to measure linear motion. Shenzhen Soway Tech Limited (Soway) offers a wide range of LVDT displacement sensors that provide continuous, accurate, and reliable measurement for industrial, testing, and automation applications.

Principle of Measurement

A Soway LVDT displacement sensor operates by detecting the position of a movable magnetic core within the sensor housing. The core moves freely without any physical contact, enabling continuous and non-contact measurement.

When the sensor is powered, the position of the magnetic core affects the electrical signal output. Although the detailed internal mechanism is not specified on the product page, the sensor provides a stable signal that reflects the core’s linear displacement, allowing precise position measurement.

This design ensures that the sensor operates with high reliability and minimal mechanical wear, making it suitable for long-term use in industrial environments. The non-contact measurement approach contributes to consistent performance, even in conditions with vibration, dust, or moisture.

Advantages in Measurement and Reliability

Continuous measurement: The core moves freely, providing ongoing position feedback without interruption.

High reliability: The non-contact design prevents mechanical wear, ensuring stable operation over time.

Environmental durability: The sensors are designed to maintain performance in industrial conditions, including exposure to dust, vibration, and moisture.

Precision feedback: The sensor provides linear and repeatable position readings, supporting accurate control and monitoring in industrial systems.

Soway LVDT displacement sensors provide precise, reliable measurement of linear position by detecting the movement of a magnetic core. The combination of non-contact operation, continuous measurement, and industrial durability ensures that these sensors deliver consistent performance across a wide range of applications.

This design makes Soway LVDT displacement sensors an ideal choice for applications requiring accurate, repeatable, and robust linear displacement measurement.