MAGNETOSTRICTIVE TRANSDUCER

摘要

The present invention relates to a magnetostrictive transducer, comprising: a magnetostrictive waveguide forming a measurement probe; excitation means coupled to said - waveguide for generating an excitation pulse forming a magnetic field which surrounds said waveguide; - magnetic positioning means coupled to said waveguide so as to perform a displacement in relation to said waveguide to generate an acoustic pulse in the waveguide at the point in which said magnetic positioning means are located as a reaction to a magnetic field surrounding the waveguide; - signal conversion means coupled to the waveguide and suitable to produce an output signal in response to the interaction of said conversion means with said acoustic pulse. the transducer being characterised in that said magnetostrictive waveguide comprises a magnetostrictive wire made of at least 99% pure nickel.