Magnetostrictive Displacement Sensor

Magnetostrictive Displacement Sensor

Magnetostrictive Displacement Sensor is a sensor used to measure the linear displacement of objects. It utilizes the characteristic of small deformation of materials under the action of an external magnetic field to achieve displacement measurement. Magnetostrictive phenomenon refers to the phenomenon where certain materials undergo directional rearrangement of magnetic moments under the action of a magnetic field, resulting in small changes in material length.

Structure:

Sensors typically consist of two parts: a guide rod with magnetic markings and a fixed magnetic ring. The magnetic ring is a source of magnetic field, which acts on the guide rod through its generated magnetic field. A magnetic sensing element is embedded inside the guide rod, which can sense the magnetic changes of the guide rod and then determine its displacement. When an external magnetic field is applied to the magnetic ring, the magnetic properties of the ring will change, resulting in a slight expansion and contraction of the waveguide rod.

Principle:

By measuring the magnetic field changes on the waveguide rod, the sensor can accurately calculate the displacement of the waveguide rod, thereby achieving the purpose of measuring displacement.

Characteristics and Application：

This type of sensor has the advantages of high measurement accuracy, fast response speed, and durability, making it widely used in many industrial applications, such as displacement monitoring of mechanical equipment, liquid level measurement, robot control, and other fields.

1. Servo hydraulic cylinder piston position feedback or preset;

2. Feedback or preset of grinding machine position;

3. Wood processing positioning control;

4. Detection and control of the opening of water turbine guide vanes;

5. Paper and plastic film forming;

6. Extrusion mold machinery;

7. Blow molding;

8. Construction machinery;

9. Metal forming/shear stamping;

10. Other mechanical positioning and displacement detection;

11. Dam gates;

12. Displacement control of casting and forging machine tools;

13. Positioning and monitoring of injection molding machine templates;

14. Detection and control of the opening of steam turbine air resistance valves;

15. Glass pressing;

16. Plastic machinery renovation;

17. Pneumatic cylinder;

18. Steel rolling;

19. Food processing;

20. Port machinery;

21. Ship steering gear servo system;

22. Servo cylinder piston position feedback or preset.