离子源高压端信号取样测量电路的研究  

Study on the High Voltage Terminal's Signals of the Ion Source Sampling and Its Measuring Circuit

作　　者：胡纯栋[1] 田中俊[1,2] 刘胜[1] 

机构地区：[1]中科院等离子体物理研究所,安徽合肥230031 [2]山东枣庄学院,山东枣庄市277160

出　　处：《核电子学与探测技术》2011年第5期539-542,共4页Nuclear Electronics & Detection Technology

基　　金：国家自然科学基金(10875146)

摘　　要：在对离子源电参数进行测量时,由于现场环境较复杂,干扰源多,故对其高压信号取样隔离部分的抗干扰性能要求较高,其抗干扰性能好坏将直接影响测量结果的准确性。以测量离子源弧压为例,针对干扰特性设计了电阻、电容并联的分压取样电路,利用同轴电缆实现隔离屏蔽,利用差分方式进行信号采集输入以减小噪声干扰,使信号经取样隔离后具有较低的失真。In electrical parameter measurement of ion source,theanti-interference ability of sampling andisolation part of high voltage terminal＇ssignals is very important because of the complex environment and lots of interference sources in locale.It affects accuracy of the result directly.It takes the measurement of Arc Voltage（Varc） for example,designs a sampling circuit with parallelResistors and capacitors,Using coaxial cable to achieve isolation,Using differential input mode to Reduce noise,which can bring signals of low-distortion after sampling and isolation.

关 键 词：中性束注入系统 离子源 高压端 取样 屏蔽隔离 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]