The striptor: A new magnetic element with many applications

Foundations are laid for the development of new magnetostriction sensors and transducers, with emphasis on the torqued magnetic ribbon. The domain structure in the Striptor (TORqued magnetic STRIP - excited by electric core-currents) is compared with the straight ribbon and wire core structures. Rules are summarized for the excitation of various core configurations. The ΔE effect in magnetostriction materials has been derived as ΔE = (λrEMa/K)²/μoχr, where Mais the magnetization corresponding to the bias Haat the drive coil. Using the ΔE, an expression is obtained for the output of the sinusoidal excitation type magnetostriction line. A ΔG effect is predicted for electric core-currents (G: shear modulus). Applications for the Striptor are given.