The magnetic gradient tensor system(MGTS)is the application basis for detecting the full tensor gradient field of magnetic target.Regional magnetic anomalies leads to a magnetic gradient tensor field,which MGTS uses as an information source to achieve the magnetic gradient tensor measurement through the differential calculation between vector magnetic sensors.Compared to the magnetic total field and vector field detection equipment,MGTS has high resolution,large information content,and strong anti-interference ability,which can obtain more potential physical property information of targets.The progress of target detection technology based on MGTSs worldwide is studied to provide theoretical reference and technical support for the modernization and informatization construction of magnetic detection equipment in China.The development process and stages of modern magnetic detection technology are elaborated,and then the two types of MGTSs based on superconducting technology and flux gate method,as well as their applications areintroduced and summarized.The calibration,compensation,noise reduction,magnetic target positioning and recognition technologies of MGTSs are reviewed.Finally,the design ideas for future high-precision magnetic gradient tensor detection instruments are prospected,and the current problems and development trends of various key technologies for magnetic gradient tensor detection are summarized.
关键词
磁梯度张量系统/磁性目标探测/目标定位与识别/磁通门传感器/超导量子干涉仪
Key words
magnetic gradient tensor system/magnetic target detection/target positioning and recognition/fluxgate sensor/superconducting quantum interference device
维普
万方数据