The Application of Draw Wire Sensor in Water Conservancy Gate
The Application of Draw Wire Sensor in Water Conservancy Gate
Rope displacement sensor, also known as rope sensor, rope electronic ruler and rope encoder, is a kind of sensor used to measure linear position. It combines the advantages of angle sensor and linear displacement sensor, and has the characteristics of small installation size, compact structure, large measuring stroke and high precision, ranging from hundreds of millimeters to tens of meters. Measuring the opening of the gate: the pull-rope/linear displacement sensor can directly measure the displacement of the gate leaf or arm, thus indirectly reflecting the opening of the gate. This measurement method is relatively simple, and can effectively avoid the influence of environmental factors on the sensor, improve the measurement accuracy and service life.
The cable displacement sensor is widely used, including but not limited to the following fields:
Construction industry: used for the measurement of the rise and fall of bridges and buildings, and the measurement of the distance between buildings.
Water conservancy industry: used for measuring the opening and closing of sluice and the rise and fall of water level.
Fishery: used for measuring the steering wheel rotation direction and deck elevation of fishing boats.
Geological survey: used to calculate the distance of landslide and the area after ground change caused by various geological reasons.
Mining: used for measuring the advancing distance of mining equipment and the subsidence distance of the ground.
Machinery: used for measuring the position of traveling crane, the pressure distance of hydraulic machinery, and the distance of plate bending machine.
Railway industry: used for detecting slight displacement of railway tracks. Processing industry: used for size control of various products, etc.
Laboratory: used for displacement calculation of design equipment in university laboratories.
When selecting the cable displacement sensor, the following parameters should be noted:
Range: Choose the appropriate range according to the actual distance to avoid using it beyond the range.
Power supply voltage: Select the appropriate power supply voltage according to the requirements of the acquisition system.
Output signal: Select the appropriate output signal type (digital signal or analog signal) according to the requirements of the acquisition system.
Linear accuracy: Select the appropriate linear accuracy according to the measurement accuracy requirements.
Next, according to the characteristics, application scope and matters needing attention of the cable displacement sensor, we mainly introduce the application of the cable displacement sensor in the water conservancy gate:
1. Feedback and control: The pull-rope/linear displacement sensor feeds back the measured gate opening signal to the control system, and the control system adjusts the action of the actuator according to the preset parameters and algorithm, so as to realize accurate control of the gate opening. This feedback mechanism is helpful to improve the response speed and stability of the control system.
2. High accuracy and stability: The pull-rope/linear displacement sensor has the characteristics of high accuracy and stability, and is suitable for use in water conservancy projects. It adopts high-precision magnetic induction encoder and precision mechanical gear structure, which can realize power-off memory and absolute position signal output without battery, ensuring measurement accuracy and data stability.
3. Adapt to harsh environment: Because the gate is usually located in the open air or wet environment, the cable/linear displacement sensor needs to have a high protection level. For example, the multi-turn magnetic induction absolute value encoder independently developed by SOP is encapsulated with high-strength potting glue, thus ensuring that the magnetic induction absolute value encoder can work normally underwater for a long time. Waterproof cable/linear displacement sensor has a high protection level, which can reach IP68. It can resist the influence of harsh environment on the sensor and ensure the measurement accuracy and data stability.
To sum up, the cable displacement sensor is a kind of linear position sensor with high precision, large stroke and compact structure, which is widely used in various occasions where linear position needs to be measured. When selecting the model, it is necessary to select the appropriate parameters according to the actual needs to ensure the accuracy and reliability of the measurement results.