【摘要】 pT(皮特斯拉)级巨磁阻抗(Giannt magneto-impedance, GMI)效应传感器因其灵敏度高、响应速度快、功耗低、易于小型化、无磁滞等优点，在极微弱生物磁场检测方面展现出了巨大的应用潜力，尤其在脑磁图(Magnetoencephalography, MEG)和心磁图(Magnetocardiography, MCG)信号检测等领域。综述了pT级GMI传感器的工作原理、发展历程及其在生物磁场检测中的应用现状，重点探讨了其在MEG和MCG信号检测领域的研究进展。同时，分析了当前该技术在信号采集、处理方法以及抗干扰能力方面的技术挑战，并展望了GMI传感器在医学检测领域未来的发展方向。通过整合多模态检测和智能化处理，pT级GMI传感器有望为生物磁场检测带来更多突破，为心脑疾病的早期诊断提供新的技术支持。更多还原

【Abstract】 pT-level giant magneto-impedance(GMI) effect sensors, known for their high sensitivity, rapid response, low power consumption, ease of miniaturization, and lack of hysteresis, show significant potential in detecting weak biomagnetic fields, especially in magnetoencephalography(MEG) and magnetocardiography(MCG) signal detection. This paper reviews the principles, development, and applications of pT-level GMI sensors in bio-magnetic field detection, with an emphasis on advancements in MEG and MCG signal detection. It also discusses the technical challenges related to signal acquisition, processing methods, and interference resistance, while exploring future directions for GMI sensors in medical diagnostics. The integration of multi-modal detection and intelligent processing is expected to enable pT-level GMI sensors to drive breakthroughs in bio-magnetic field detection, providing new support for early cardiac and neurological disease diagnosis.更多还原