磁选态铯束管信号微电流放大器的设计与仿真  

DESIGN AND SIMULTION OF MICRO-CURRENT AMPLIFIER FOR SIGNAL MEASUREMENT OF CESIUM BEAM TUBE WITH MAGNETIC STATE SELECTION

作　　者：杨京[1] 张涤新[1] 王骥[1] 陈江[1] 朱宏伟[1] 

机构地区：[1]兰州物理研究所,甘肃兰州730000

出　　处：《真空与低温》2011年第1期37-40,共4页Vacuum and Cryogenics

基　　金：国家高技术研究发展计划:2007AA12Z303

摘　　要：通过对铯束管信号特性以及噪声的分析,采用高精度运算放大器OPA128LM,设计了一种可用于铯束管信号测量的放大滤波电路,并且根据需要设计了微电流源,运用Protel电路仿真软件进行仿真调试,使其达到设计要求。A rapid micro-current amplifier is presented to measure the signal of CBT by analyzing signal characteristic and noise of cesium beam tube with magnetic state selection,which is based the high-precision OPA128LM.Then,a micro-current source was designed and the circuit was debugging by the Protel software.In the end,the simulation result shows that the micro-current source satisfied the design demand.

关 键 词：铯束管 RAMSEY OPA128LM 微电流放大器 微电流源 

分 类 号：TH714.14[机械工程—测试计量技术及仪器]