Magnetostrictive wave guide wire used for Magnetostrictive level gauge

Magnetostrictive wave guide wire

• Introduction
  • A-one Alloy has  rich experience of supplying Magnetostrictive waveguide wire to customers  from worldwide. Our wire is widely used in Magnetostrictive level gauge/sensor.  We keep regular stock of wire of diameter 0.35mm/0.50mm/0.75mm/1.0mm/1.2mm.  Contact Allen Sun at allen.sun@sz-alloy.com  for latest stock information.
  • Magnetostriction is a property of  ferromagnetic materials such as iron, nickel, and cobalt. When placed in a  magnetic field, these materials change size and/or shape.
  • An important characteristic of a wire  made of a magnetostrictive material is the Wiedemann effect. When an axial  magnetic field is applied to a magnetostrictive wire, and a current is passed  through the wire, a twisting occurs at the location of the axial magnetic  field. The twisting is caused by interaction of the axial magnetic field,  usually from a permanent magnet, with the magnetic field along the  magnetostrictive wire, which is present due to the current in the wire.
  • The current is applied as a  short-duration pulse, -1 or 2 µs; the minimum current density is along the  center of the wire and the maximum at the wire surface. This is due to the  skin effect.
  • The magnetic field intensity is also  greatest at the wire surface. This aids in developing the waveguide twist. Since  the current is applied as a pulse, the mechanical twisting travels in the  wire as an ultrasonic wave. The magnetostrictive wire is therefore called the  waveguide.
• Character
  • λ//: 28ppm；
  • λs:≈30ppm
  • Density:8.0g/cm3
  • Linear Expansion coefficient: 8.5ppm/K  (@20-100°C)
  • Resistivity: 1.1μΩ·m
  • Tensile strength: >930MPa
  • Working temperature: -40~100°C
  • Elasticity modulus: 170~190Gpa
  • Shear modulus: 60~65GPa
• Application
  • Magnetostrictive level gauge, Magnetostrictive  sensor,
• Sizes available  at A-one Alloy
• Diameter 0.20~1.5mm. Stock size:  diameter 0.35mm/0.50mm/0.75mm/1.0mm/1.2mm. In reel or coil.
• Delivery
• Stock items: within 3 days after  payment received. For customized diameter, the delivery is 30 days.