The hydraulic motor stroke sensor DEH-LVDT-100-6 is mainly composed of an iron core that can slide in the center and three windings around it. The input signal is provided through two output windings, which are configured in the same way to form a differential output. When the actuator drives the iron core to displace, the induction signal between the windings changes accordingly, thereby generating a voltage output proportional to the position of the iron core. This ingenious design enables the sensor to maintain high accuracy and high reliability when detecting tiny displacements, providing key data support for the precise control of the steam turbine.

I. Performance advantages

1. High-precision measurement: It has extremely high linearity, and the relationship between output and displacement is almost perfectly linear. In most cases, the nonlinearity is within ±0.5%, and the repeatability is less than 0.1%. This enables it to accurately feedback displacement data in the displacement measurement of the actuator, helping the steam turbine maintain the best operating state.

2. Strong stability: With excellent temperature compensation characteristics, the output is basically not significantly affected by ambient temperature changes, and can work stably in power plant environments with large temperature fluctuations. At the same time, the non-contact design greatly reduces the wear rate, so that it can maintain high stability and consistency during long-term continuous operation.

3. Adapt to harsh environments: From structural design to material selection, the complex working environment of the power plant is fully considered, and it can effectively resist dust, water vapor and electromagnetic interference, etc., to ensure the normal measurement work.

4. Wide measurement range: The measurable displacement range can meet the various working conditions of the power plant turbine actuator, whether it is a small displacement change or a large stroke change, it can be accurately captured and fed back.

II. Technical parameters

1. Measurement stroke: It can be customized according to actual needs to meet the displacement measurement requirements of actuators of different types of steam turbines.

2. Accuracy: It can reach ±0.1% F・S and above to ensure the accuracy of the measurement data.

3. Dynamic frequency response: It can quickly respond to the dynamic displacement changes of the actuator, and the dynamic frequency range meets the real-time control requirements of the steam turbine.

4. Operating temperature range: generally -10℃ to 70℃, special specifications can adapt to a wider temperature range, such as -50℃ to +150℃.

5. Sensitivity drift: zero drift is less than 0.02%/℃, full-scale drift is less than 0.03%/℃, ensuring the stability of measurement under different temperature conditions.

III. Application scenarios in power plant steam turbines

1. Real-time monitoring of actuator displacement: Continuously monitor the displacement of the actuator, transmit accurate data to the control system in real time, and provide operators with intuitive equipment operation status information so that they can make timely adjustments.

2. Ensure safe operation of steam turbines: Through precise control of the displacement of the actuator, ensure accurate adjustment of the steam inlet of the steam turbine, prevent equipment damage or safety accidents caused by abnormal steam inlet, and ensure safe and stable operation of the steam turbine.

3. Assist in equipment optimization maintenance: The measurement data can be used for performance analysis and fault diagnosis of the equipment, helping technicians to promptly discover potential problems, formulate reasonable maintenance plans, extend the service life of the equipment, and reduce maintenance costs.

The hydraulic motor stroke sensor DEH-LVDT-100-6 has become an important device to ensure the efficient operation of power plant steam turbines with its unique working principle, outstanding performance advantages, precise technical parameters and key applications in power plant steam turbines. Choosing DEH-LVDT-100-6 is to lay a solid foundation for the stable power supply and safe production of power plants.

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