感应式磁声成像脉冲磁场发生系统的研究  

Study of Generating System of Pulsed Magnetic Field for Magnetoacoustic Tomography Technology with Magnetic Induction

作　　者：张泽奎[1] 危立辉[1] 周建勇[1] 陆俊杰[1] 

机构地区：[1]中南民族大学电子信息工程学院,武汉430074

出　　处：《现代科学仪器》2008年第6期3-5,共3页Modern Scientific Instruments

摘　　要：介绍了感应式磁声成像系统的关键部件脉冲磁场发生系统的设计。给出了脉冲磁场发生系统的电路构成和工作原理;在对储能电容器RLC电路进行分析的基础上,确定了对电容的充电和放电的控制时序,对各元件的参数进行了计算;介绍了其中的关键部件8字形线圈的构成,并对8字形线圈产生的脉冲磁场随充电电压、线圈正中央垂直高度的变化关系进行了分析,给出了实验波形。This paper introduces the design of the pulsed magnetic field for Magnetoacoustic Tomography Technology with Magnetic Induction,and presents the configuration and principle of the circuit.On the basis of analysis the circuit of RLC,the article confirms sequence control of the charge and discharge with capacitance,and calculates the parameters of all kinds of elements.The configuration of the figure-of-eight coil is introduced. The relation between pulsed magnetic filed that the figure-of-eight coil produces and the charging voltage and erect altitude is analyzed.Waveform trains is gotten finally.

关 键 词：磁场电源 脉冲磁场 8字形线圈 探测线圈 

分 类 号：TH773[机械工程—仪器科学与技术]