The magnetostrictive displacement sensor accurately detects the absolute position of the active magnetic ring through internal non-touch measurement and control skills to measure the actual displacement value of the tested product; the high precision and high reliability of the sensor has been widely used in thousands Thousands of practical cases. So what are the classifications of magnetostrictive displacement sensors?
1. According to the characteristics of the measured object, it can be classified into magnetostrictive displacement sensor and magnetostrictive liquid level sensor:
Magnetostrictive displacement sensor detects the linear displacement. It is generally used for the stroke detection of the piston rod of the hydraulic cylinder, and is also used for the stroke detection of the shrinking mold of the injection molding machine, and the displacement detection of other mechanical equipment.
Magnetostrictive liquid level sensor is the magnetic ring of the magnetostrictive displacement sensor is built into the float ball. After the buoyancy of the float ball in the liquid, it floats up and down with the unevenness of the liquid level to detect the height of the liquid level and the applicable liquid It can be liquids with low viscosity such as water, oil, and mixtures. For high viscosity liquids like asphalt, it is not suitable for the detection of floating ball sensors.
2. Magnetostrictive sensors are classified according to the device method, which can be divided into hydraulic cylinder built-in type and hydraulic cylinder external slider type, and hydraulic cylinder built-in type is divided into electronic cabin exposed type and built-in type (electronic cabin is extremely small) And the electronic cabin is separated. Choose according to the field device environment and equipment requirements.
3. According to the output signal form, there are current 4-20MA, voltage 0-5V, 0-10V, MODBUS RTU 485 digital signal
4. According to the raw material of the measuring rod, it can be divided into flexible outer tube displacement sensor and conventional hard rod displacement sensor.
Flexible outer tube displacement sensors are generally used for long-stroke cylinders of more than 5 meters, liquid level detection of more than 5 meters, and requirements for curved packaging to save transportation costs.
5. Classification according to certification level: ordinary economic type, explosion-proof, intrinsically safe, etc.