Research Progress on Target Detection Technology of Magnetic Gradient Tensor System
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.
magnetic gradient tensor systemmagnetic target detectiontarget positioning and recognitionfluxgate sensorsuperconducting quantum interference device
万方数据
维普
