Displacement sensor TD-1GN-400-25 is a high-precision sensor designed for high-pressure and medium-pressure actuator stroke measurement of steam turbines. This sensor belongs to the TD-1 series, combines high temperature and wear resistance, and is suitable for various complex and demanding industrial environments.

Displacement sensor TD-1GN-400-25 is a type of linear variable differential transformer (LVDT) that works on the principle of differential transformer. Its core component is a movable iron core placed at the center of three mutually wound coils. When the iron core moves under the action of the alternating magnetic field of the primary coil, the two secondary coils will generate voltages with opposite phases, and the difference is proportional to the displacement of the iron core, thereby achieving accurate measurement of displacement.

Main features

1. High-precision measurement: The TD-1GN-400-25 displacement sensor has extremely high linearity and repeatability. The linearity can generally reach 0.1%, the output sensitivity is generally 0.1 to 1V/mm, and the resolution is generally 0.1um, ensuring that accurate data can be provided in the stroke measurement of high-pressure and medium-pressure actuators.

2. Wide range design: TD-1GN-400-25 provides a variety of range options to meet the measurement needs of actuators of different sizes. Specific models such as TD-1GN-400-25 indicate that its measurement stroke is 400mm, and the range can be customized according to actual needs.

3. High stability and reliability: The sensor has a simple structure, reliable operation, easy use and maintenance, and a long life. Under the condition of power plant ambient temperature of 80°C to 120°C, it can continuously run a turbine overhaul cycle without replacement and maintenance.

4. Fast dynamic response: TD-1GN-400-25 has a small time constant and high dynamic response, and the dynamic frequency can reach 200Hz (3db), which is suitable for fast response and control of actuators.

5. Strong environmental adaptability: It can work stably in the operating temperature range of -55°C to +150°C (special specifications can reach 0~+280°C), moisture-proof and salt spray-proof, and can even maintain performance in pressurized liquids or certain corrosive environments.

Application fields

Displacement sensor TD-1GN-400-25 is widely used in aerospace, machinery manufacturing, earthquake monitoring, automobile industry, coal mining, power systems, and scientific research institutes. They are used to measure displacement, distance, elongation, movement, thickness, expansion, liquid level, strain, compression, weight and other physical quantities.

In summary, Displacement sensor TD-1GN-400-25 has become an ideal choice for stroke measurement of high-pressure and medium-pressure actuators of steam turbines due to their high precision, high stability and good environmental adaptability.

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