摘要
设计了一种高灵敏度低频感应式磁传感器,介绍了其具体结构和工作原理。通过分析影响灵敏度的主要因素,提出了高灵敏度传感器的研制方法。介绍了传感器的结构、线圈的等效电路、线圈的绕制方式、阻尼匹配技术、条状屏蔽技术以及低噪声前置放大技术。同时,通过对比实验论证了传感器的高灵敏度;通过室内实验和矿井实验,论证了传感器在实际测量中的优良性能。试验结果表明,研制的感应式磁传感器可以满足多种测量环境要求。
This paper designs a high-sensitivity low frequency inductive magnetic sensor and introduces its specific structure and working principle. Through analyzing the main factors which affect the sensitivity,the paper proposed research methods of high sensitivity magnetic sensor. The structure of the sensor,the equivalent circuit of the coil,the coil winding manner,damping matching technology,strip shielding technology are introduced in details as well as a lownoise preamplifier technology. Meanwhile,comparative experiments demonstrated the high sensitivity of the sensor.Laboratory experiments and mine experiments all demonstrated excellent performance in actual sensor measurements.The developed inductive magnetic sensor meets the requirements of a variety of measurement environment,and the sensitivity reaches the advanced level.
出处
《实验室研究与探索》
CAS
北大核心
2015年第8期61-63,80,共4页
Research and Exploration In Laboratory
基金
十二五国家重大专项(2011zx05040-002)
关键词
高灵敏度
线圈绕制
阻抗匹配
条状屏蔽
低噪声
high sensitivity coil winding impedance matching shielding strip low noise
作者简介
张碧勇（1988-），男，重庆万州人，助理工程师，主要从事地球物理勘探仪器研究Tel：18875136123；E-mail：zby18402010@163．com
通信作者：许洋铖（1983-），男，重庆南川人，高级工程师，主要从事地球探测技术及仪器研究。Tel：023-68683314；E-mail：xuyangcheng1983@163.com
