| 120路簇射计数器读出电子学系统 |
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| 引用本文： | 胡家伟,陈沈南,高翠山,谢小希,高正为,汤福坤,张浩云,梁国宁,李维衡,刘振安. 120路簇射计数器读出电子学系统[J]. 核电子学与探测技术, 1988, 0(2) |
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| 作者姓名： | 胡家伟 陈沈南 高翠山 谢小希 高正为 汤福坤 张浩云 梁国宁 李维衡 刘振安 |
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| 作者单位： | 中国科学院高能物理所(胡家伟，陈沈南，高翠山，谢小希，高正为，汤福坤，张浩云，梁国宁，李维衡)，中国科学院高能物理所(刘振安) |
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| 摘 要： | 120路簇射计数读出电子学系统,主要由采样保持电路、多路模拟数字转换器及模拟总线组成。为了提高整个系统的装配密度和可靠性并减小环境温度变化的影响,专门设计了一种薄膜混合集成采样保持电路。采用了计算机在线校正方法,解决了放大器增益变化、积分非线性、模拟开关台阶和传输电缆干扰等引起的测量误差问题。系统的主要指标为:线性优于0.2％,σ噪音约为1.3BADC道,串扰优于1％,Z向位置分辨优于0.6％(SQS簇射计数器模型)。
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| 关 键 词： | 高速瞬态数据获取系统 混合集成采样保持电路 多路模拟数字转换器 模拟总线 计算机在线校正 |
The 120-Channel Readout Electronic System of Shower Counter |
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| Hu Jiawei Chen Shennan Gao Cuishan Xie Xiaoxi Guo Zhengwei Tang Fukun Zhang Haoyun Liang Guoning Li Weiheng Liu Zhenan. The 120-Channel Readout Electronic System of Shower Counter[J]. Nuclear Electronics & Detection Technology, 1988, 0(2) |
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| Authors: | Hu Jiawei Chen Shennan Gao Cuishan Xie Xiaoxi Guo Zhengwei Tang Fukun Zhang Haoyun Liang Guoning Li Weiheng Liu Zhenan |
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| Abstract: | This system mainly consists of sample-hold circuit, multiplexer A/D converter and analog bus. A method of computer online correction is used as well. The problem of measuring error caused fay gain variation, integrated nonlinearity, pedestal of analog switch, influence of transmission cable and so on is solved, so good iinearity and stability have been obtained. The main specifications are as follows; nonlinearity<0.2%, a noise is about 1.3 BADC bit, cross influence<1%, resolution in Z direction<0.6% (SQS shower counter model) . |
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| Keywords: | The high speed instantaneous data acqusition system Hybrid integrated sample-hold circuit Multiplexer A/D converter Analog bus Computer on-line correction |
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