低温超导全张量磁梯度测量系统研制与应用  

Development and application of a low temperature superconductingfull tensor magnetic gradient detection system

作　　者：刘建英 郭华 郭子祺 乔彦超 秦静欣 Liu Jianying;Guo Hua;Guo Ziqi;Qiao Yanchao;Qin Jingxin(Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100094,China;China Aero Geophysical Survey and Remote Sensing Center,Beijing 100083,China)

机构地区：[1]中国科学院空天信息创新研究院,北京100094 [2]中国自然资源航空物探遥感中心,北京100083

出　　处：《仪器仪表学报》2023年第9期163-172,共10页Chinese Journal of Scientific Instrument

基　　金：国家重点研发计划课题(2021YFB3900201-03)项目资助。

摘　　要：首先介绍了低温超导全张量磁梯度测量系统的组成、仪器布局和硬件连接;然后分析了系统研制过程中各模块测试结果,包括测控系统噪声测试和SQUID灵敏度测试,指出组成系统的SQUID传感器的一致性至关重要;其次,详细阐述了系统地面静、动态实验,测试了系统动态范围、测量精度和稳定性,系统静态实验磁梯度测量精度均优于±30 pT/m;最后,在江苏丹阳进行了野外飞行试验,根据DZ/T 0142—2010航空磁测技术规范,测量结果表明各张量分量重复线内符合精度优于±25 pT/m,每条测线动态测量灵敏度均值均优于±30 pT/m。此套系统以达到工程样机水平,大大提高了低温超导全张量测量系统的实用化程度,为我国在低温超导航磁测量领域接下来的研究工作打下了坚实的基础。Firstly,this article introduces the composition,instrument layout,and hardware connection of the low-temperature superconducting full tensor magnetic gradient measurement system.Then,the test results of each module in the system development process are analyzed,including the noise test and SQUID sensitivity test of the measurement and control system.Secondly,the ground static and dynamic experiments of the system are described in detail.The dynamic range,measurement accuracy,and stability of the system are tested.Each component of the magnetic gradient measurement accuracy of the system static experiment is better than±30 pT/m.Finally,the flight test is implemented in Danyang,Jiangsu Province.According to the DZ/T 0142—2010 Technical Specifications for Aeromagnetic Survey,the measurement results show that the coincidence accuracy in the repeated lines of each tensor component is better than±25 pT/m,and the average dynamic measurement sensitivity of each measuring line is better than±30 pT/m.This system has reached the level of engineering prototype,greatly improving the practicality of the low-temperature superconducting full tensor measurement system.It provides a solid foundation for future research work in the field of low-temperature superconducting navigation magnetic measurement in China.

关 键 词：测控系统 低温超导 超导量子干涉仪 全张量 吊舱 

分 类 号：TH763.1[机械工程—仪器科学与技术]