Study Status of Giant Magnetostrictive Material Applied in Measurement Field

Giant Magnetostrictive material is a new type of rare earth functional material which is after the rare earth permanent magnets, rare earth luminescent material and rare earth high temperature superconducting material. At present, giant magnetostrictive material has become a domestic research hot spot, and made great achievements. In this paper, research and application status on giant magnetostrictive material has been summarized. It mainly includes two aspects: giant magnetostrictive sensors and self-sensing actuator.