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Magnetoxtrictive Level Sensor
    Publish time 2025-03-14 10:38    

Working Principle

A magnetostrictive level sensor operates based on the magnetostrictive effect, where certain ferromagnetic materials (e.g., iron-nickel alloys) undergo mechanical deformation when exposed to a magnetic field. The sensor consists of three key components:

  1. Waveguide Tube: A magnetostrictive wire or strip installed along the length of the container.

  2. Magnetic Float: Moves with the liquid level and contains a permanent magnet to generate a magnetic field.

  3. Electronic Module: Generates current pulses and detects returning strain waves.


Key Advantages

  1. High Precision: Accuracy up to ±0.5 mm, ideal for critical applications.

  2. Continuous Measurement: Real-time monitoring without mechanical switching.

  3. Robust Performance: Unaffected by foam, vapor, density changes, or turbulence.

  4. Non-Contact Design: No mechanical wear, ensuring long-term reliability.

  5. Multi-Parameter Output: Simultaneously measures level, interface (e.g., oil-water separation), and temperature.


Typical Applications

  • Industrial: Oil storage tanks, chemical reactors, wastewater treatment.

  • Energy: LNG storage, fuel inventory management.

  • Food/Pharma: Hygienic designs for sterile liquid monitoring.



Magnetoxtrictive Level Sensor