混场源电磁探测仪器发射天线设计

内容简介：为了满足混场源电磁探测中人工场源信号的获取,设计了一种基于磁性源的场源发射装置。分别对发射天线的物理结构、等效电路模型等方面进行了讨论,建立了发射天线电路模型,并得出天线在z方向和x、y方向产生的磁感应强度。试验结果表明：该发射装置可提供1～80kHz的有效人工场源,弥补了天然场源的不足,拓宽了仪器的勘探深度。

Abstract：A transmitting device based on the magnetic-signal was designed in order to get the manual-signals in hybrid-source mag-netotellurics detection.The physical structure and the equivalent circuit method model of the transmitting antenna were discussed.The equivalent circuit model was built,and the magnetic densities in different directions were obtained.Combined with the existing experimental conditions,the rationality and effectiveness of designed device were verified.The experiments proved that the transmitting device can provide effective manual-signal with frequency in the range of 1 kHz ~ 80 kHz which makes up the shortage of the natural-signal,and expands the exploration depth of the instrument.

作者：万云霞, 程德福, 卢浩, 王言章,

关键词：仪器仪表技术, 人工场, 磁性源, 发射天线, 电路等效模型,