Principle:

1. Principle:
   • Magnetic Material: A magnetic rod or magnetic float is typically used in a magnetic magnetostrictive level sensor, which undergoes length or volume changes under an applied magnetic field.
   • Magnetic Field: A constant magnetic field is applied around the magnetic material, and variations in the magnetic field are used to measure the liquid level.
   • Buoyancy Effect: Changes in the liquid level cause shifts in the position of the float or magnetic rod, altering the magnetic properties of the magnetic material, which can be detected and quantified by sensors.

Advantages:

1. Non-contact Measurement: Magnetostrictive level sensors do not require direct contact with the liquid, thus are unaffected by liquid properties such as corrosiveness or temperature.
2. Wide Applicability: Suitable for various liquids, including corrosive or high-temperature liquids.
3. High Accuracy: Utilizing magnetic sensors, magnetostrictive level sensors offer high measurement accuracy, enabling precise liquid level measurement.
4. Long-term Stability: Magnetic materials typically exhibit good long-term stability, resistant to external environmental influences.
5. Easy Installation and Maintenance: Compared to other level measurement techniques, magnetostrictive level sensors are relatively easy to install and maintain, requiring less frequent calibration.
6. Corrosion Resistance: Due to indirect contact with the liquid, magnetostrictive level sensors often demonstrate excellent corrosion resistance, suitable for measuring corrosive liquids.
7. Strong Adaptability: Different sizes and shapes of magnetic materials can be selected to accommodate various sizes and shapes of liquid containers.
8. Real-time Monitoring: Sensors can continuously monitor changes in liquid level, suitable for real-time level monitoring and control.

In summary, magnetostrictive level sensors offer advantages such as high accuracy, stability, corrosion resistance, wide applicability, and real-time monitoring, making them suitable for liquid level monitoring and control in various industrial applications.