一种频域电磁探测发射机的研究与设计  

A frequency domain electromagnetic detection transmitter in the research and design

作　　者：黄江波 付志红[2] 付炜[3] 

机构地区：[1]长江师范学院电子信息工程学院,重庆408100 [2]重庆大学电气工程学院,重庆408044 [3]国家电网重庆市电力公司市区供电分公司,重庆408040

出　　处：《华东师范大学学报（自然科学版）》2017年第6期105-113,共9页Journal of East China Normal University(Natural Science)

基　　金：国家自然科学基金(51277189);重庆市教育委员会科学技术研究项目(KJ1401224)

摘　　要：电磁探测设备是国内外研究的热点.本文通过分析频域电磁探测发射机的拓扑结构,设计了具有上升、下降沿均钳位,且输出电流阶段连接恒流源的发射电路,以及钳位电压源电容、恒流电感值,并建立了系统模型.仿真结果表明,该频域电磁探测发射机能在感性负载较大、发射频率较高的情况下,输出电流幅值大且为常规桥式发射电路3倍,具有交流方波稳定、线性度良好等优点.Electromagnetic detection device is a research focus. In this paper, frequencydomain electromagnetic detection t ransmit ter topology structure, designed wi th up and down along the clamp, and the output current phase connection the launch of constant current source c ircuit , design of the clamping voltage source capacitance inductance value, constant current, system model is established. The simulat ion results show that the frequency domain electromagnetic detection emission func tion under the condition of inductive load is bigger, high f ir ing frequency, output current amplitude, 3 times greater than that of the conventional bridge type transmission circuit . Besides, ac square wave is stable, wi th good linearity, etc.

关 键 词：电磁探测机 发射频率高 稳定性强 研究设计 

分 类 号：TM46[电气工程—电器]