X射线管高压和束流采样隔离电路研究  

Research on High Voltage and Beam Sampling Isolation Circuits for X-ray Tube

作　　者：左浩杉 孟德川[1,2] 李俊霖 马跃 申子钺 江龙涛 邓玉福 ZUO Haoshan;MENG Dechuan;LI Junlin;MA Yue;SHEN Ziyue;JIANG Longtao;DENG Yufu(Collage of Physics and Technology,Shenyang Normal University,Shenyang 110034,China;Ray Instrumentation Professional Technology Innovation Center of Liaoning Province,Shenyang 110034,China;Liaoning Instrument Research Institute Co.,Ltd.,Dandong 118002,China;Experimental Teaching Center,Shenyang Normal University,Shenyang 110034,China)

机构地区：[1]沈阳师范大学物理科学与技术学院,辽宁沈阳110034 [2]辽宁省射线仪器仪表专业技术创新中心,辽宁沈阳110034 [3]辽宁仪表研究所有限责任公司,辽宁丹东118002 [4]沈阳师范大学实验教学中心,辽宁沈阳110034

出　　处：《电工技术》2023年第20期155-158,共4页Electric Engineering

基　　金：国家自然科学基金项目(编号12075158);辽宁省教育厅基本科研项目(编号LJKFZ20220267);沈阳师范大学重大项目孵化工程(编号ZD202001)。

摘　　要：基于线性光耦HCNR200设计了高压采样隔离电路和束流采样隔离电路,实现了高电压、低电压前后的电气隔离。采用运放形成精度高、测量范围广的隔离电路。仿真和实验结果表明,这两种隔离电路都有较好的电气隔离特性及隔离前后的信号线性度,可适用于X射线管高压采样和束流采样的系统。This paper designs a high-voltage sampling isolation circuit and a beam sampling isolation circuit based on the linear optocoupler HCNR200 to achieve electrical isolation before and after high voltage and low voltage.An operational amplifier is used to form an isolation circuit with high accuracy and wide measurement range.Simulation and experimental results show that both of these isolation circuits have relatively good electrical isolation characteristics and signal linearity before and after isolation,and can be applied to high-pressure sampling and beam sampling parts in X-ray tubes.

关 键 词：线性光耦 电气隔离 高压采样 束流采样 

分 类 号：TN14[电子电信—物理电子学]