Research progress of giant magneto-impedance (GMI) sensors

The Giant Magneto-Impedance (GMI) sensors based on GMI effect of sensitive material is one of the hot spots in the field of magnetic sensors. This kind of sensors has a very superior performance, in terms of sensitivity, response speed, stability, volume, power consumption and so on, GMI sensors has obvious advantages, and has a wide range of research value and development prospects. Through summarizing the international research work on the GMI sensors, the research status of GMI sensors is analyzed from two aspects of the circuit design of the GMI sensors and the signal processing of the sensors, and the main development trend of GMI sensors is studied. It has a certain reference value for the related research.