Study on the Technology of Ultra-high Sensitive Wide-band Magnetic-feedback Inductive Magnetic SensorYong Liu, Wenbin Li, Jinrong Zhou, Rui Pan, Huan Zheng, Bing Xiang and Rui XuMATEC Web Conf., 327 (2020) 01002DOI: https://doi.org/10.1051/matecconf/202032701002