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What Is a LVDT and What Are The Applications?

Friday, January 27, 2023

An LVDT (Linear Variable Differential Transformer) is a type of sensor that is commonly used to measure linear displacement or position. It works by converting the linear movement of a target object into an electrical signal that can be read and processed by a control system.

The basic design of an LVDT consists of a primary coil, two secondary coils, and a core. The core is attached to the target object, and as it moves, the primary coil generates a magnetic field that induces a voltage in the secondary coils. The difference in voltage between the two secondary coils is proportional to the position of the core, and this signal can be used to determine the displacement of the target object.

One of the main benefits of LVDTs is their high accuracy and resolution. They are able to measure displacement with high precision and can detect small movements with great accuracy. Additionally, they are highly reliable and durable, making them well-suited for use in industrial and harsh environments.

LVDTs have a wide range of applications, including in industrial manufacturing, test and measurement, aerospace, and research settings. They are commonly used in machine tools, robotics, and automation systems to measure the position of moving parts, such as in linear actuators, valves, and pumps. They can also be used to measure position in scientific experiments, such as in satellite tracking and launch systems.

Another area of application is in the field of measurement technology, like measuring the displacement of the piston, measuring the displacement of the shaft, and measuring the deformation of the object.

In conclusion, LVDTs are a powerful and versatile type of sensor that can be used to measure linear displacement or position with high accuracy and resolution. Their durability and reliability make them well-suited for use in a wide range of industrial and research applications.

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