摘要
分析了极低频/超低频/甚低频(ELF/SLF/VLF)宽带磁传感器的工作原理,解决了磁天线低噪声、放大器低噪声、传感系数标校等关键技术问题,研制了ELF/SLF/VLF宽带磁传感器的样机并对其幅度特性、相位特性进行了测试,测试结果表明:设备性能达到了预期研究目标。
The theory of ELF/SLF/VLF broadband H-filed sensor is analyzed.The key technique about low noise of H-filed antenna,low noise of amplifier and calibration sensor coefficient is solved.ELF/SLF/VLF broadband H-filed sensor is manufactured,and the characteristics of sensitivity and phase are tested,which indicates the equipment achieves the predicted goal.
出处
《电波科学学报》
EI
CSCD
北大核心
2012年第3期604-608,共5页
Chinese Journal of Radio Science
关键词
电磁探测
宽带磁传感器
噪声特性
低噪声
electromagnetism exploration
broadband H-filed sensor
noise characteristics
low noise
