Knowledge points about rope displacement sensors
Knowledge points about rope displacement sensors
Pulling rope displacement sensor is a precision device that measures displacement by stretching and retracting the rope, widely used in industrial automation, mechanical manufacturing and other fields. The core principles, application scenarios, and usage methods are as follows:
一、Basic principles
1. Measurement principle
The sensor detects displacement by stretching and contracting the rope, and the internal automatic rotation device ensures constant tension of the rope. The output voltage (0-10V) is linearly related to the displacement (such as 7m), and the two-point method is used for calibration.
2. Technical features
High precision, high reliability, can replace grating rulers to achieve low-cost measurement;
Support electro-hydraulic servo system control, suitable for scenarios such as testing machines and telescopic systems.
二、Main application areas
1. Industrial equipment
Warehouse logistics: location positioning, shelf management;
Pressure/Construction Machinery: Hydraulic Systems, Deformation Monitoring of Building Structures;
Testing machine: Control of electro-hydraulic servo universal testing machine
2. Automated control system
Mechanical arm/robot: precise motion control;
Water conservancy engineering: monitoring of reservoir dams and gate openings.
3. Special Scenarios
Aerospace: Displacement measurement of aircraft components;
Medical equipment: Surgical robot motion control.
三、Usage method
1. Selection and installation
Select the model according to the displacement range and accuracy requirements to ensure that the rope movement trajectory is free of interference.
The power supply voltage is usually 15-24V, and data acquisition equipment (such as DEWETRON data acquisition device) needs to be connected.
2. Calibration and Debugging
By adjusting the zero point and sensitivity to ensure accuracy, the two-point method is used for calibration (0V corresponds to 0mm, 10V corresponds to 7m).
3. System integration
Connect the sensor output signal to the control system for data acquisition and processing, and achieve automatic control
四、Precautions
1. Range selection: When the pre tension space is large, an external extension cable is required to avoid sensor overload;
2. Environmental adaptability: Environmental factors such as temperature and humidity need to be considered to ensure sensor stability.
By selecting, installing, and calibrating reasonably, the rope displacement sensor can efficiently achieve high-precision displacement measurement and control.