Magnetostrictive Level Transmitter
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A magnetostrictive level transmitter gives information on the filling level of a tank or a silo. It can perform a continuous measurement of high precision and can also measure the levels of two immiscible liquids.
The sensor emits current pulses producing a circular magnetic field. A magnetostrictive wire is present in the transmitter rod. The magnet mounted in the float magnetises the wire at its position. The superposition of the two magnetic fields produces a torsion pulse that propagates along the wire to the transmitter head. The period of the course is recorded and analyzed by the electronics.
