单通道时间-幅度转换电路设计  

Design of Single Channel Time-Amplitude Converter

作　　者：郑洋德 尹俊[1,2] 白晓 李姣赛[1,2] 王彦瑜 ZHENG Yang-de;YIN Jun;BAI Xiao;LI Jiao-sai;WANG Yan-yu(Institute of Modem Physics, Chinese Academy of Sciences, Lanzhou 730000, China;University of Chinese Academy of Sciences, Beijing 100049, China)

机构地区：[1]中国科学院近代物理研究所,兰州730000 [2]中国科学院大学,北京100049

出　　处：《核电子学与探测技术》2017年第7期663-666,共4页Nuclear Electronics & Detection Technology

基　　金：国家实验室HIRFL运行维护(Y0002HITEL)资助

摘　　要：本文设计了一种改进式的时间-幅度转换电路,该电路主要由积分控制电路、积分电路、恒压源电路、峰值保持电路构成,同时采用PXI8602数据采集卡采集输出电压,从而实现时间间隔高精度测量。实验表明:测量时间间隔在300 ns范围内时,测量平均误差小于200 ps。该电路可应用于核物理实验中能谱测量。In this paper, an improved circuit for time-to-amplitude conversion is designed. It is mainly composed of an integral control circuit, an integrated circuit, a constant vohage source circuit and a peak holding circuit. Besides, the PXI8602 data acquisition card is adopted to collect the output voltage, which contributes to the high precision of time interval measurement. Tests show that the average error of the measurement is less than 200ps under 300ns of measurement time range. It can be widely applied in nuclear physics experiment of energy spectrum measurement.

关 键 词：TAC 积分控制 峰值保持 电压采集 

分 类 号：TN78[电子电信—电路与系统]