摘要
介绍了在某些特殊辐射探测环境下，基于网络传输的宽量程微弱电流自动采集系统的研制。整个系统由采用超低偏置跨阻放大电路的微弱电流L／V变化单元、24bits的A／D数据采集及控制单元、网络传输单元和应用软件组成。电流测量的范围10^-14～10^-2A，结果的分辨率为5位1／2，自动切换测量量程适应信号的变化，数据的采集和控制通过网络实现远程操作。目前该系统已应用于危险区域辐射探测电流监测等领域。
The design was described for the wide range weak for some special radiation detection environment. The whole current auto measurement system based on network system consists of I/V convert unit which uses ultra low trans - impedance amplifier, 24 bits DAQ unit, network unit and the applied software. The current measurement range is from 10^-14A to 10^-12A digital resolution reaches 51/2 the measurement range can automati tally switch and data collection and transmission are implemented by network. The whole system now was applied to weak current detection in radiation area.
出处
《核电子学与探测技术》
CAS
CSCD
北大核心
2013年第6期691-694,共4页
Nuclear Electronics & Detection Technology
基金
国防预研项目(DYF110001)
关键词
微弱电流
网络
宽量程
辐射探测
weak current
network
wide range
radiation detection
