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 email@example.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