基于单片机的丫射线环境剂量指示仪的研制

摘要:提出了一种，射线环境剂量指示仪的研制方法，其特点是以AT89C52为核心，改进倍频接收
电路，把具有12C总线功能的24系列EZ PROM和RS232串口等原件作为外围电路的设计思想，该设
计原理可确保系统具有杭外界干扰性和测量准确优点，在实际应用中，射线环境剂量指示仪可进行
环境剂量的连续监刚及与计算机通讯.
关键词:，射线;环境剂量;指示仪

Study on method of manufacturing of monitor system for detecting
y一ray radiation dose of environment
ZHAO Xiao-wen，ZHANG Peng-da，WAN Zhi-wei，WU Ke
(Technical Physics Institute of Heilon自iang Academy of Sciences, Harbin 150086, China)
Abstract;The method and designing mechanism of manufacturing the monitor system for de-
tecting the y一ray radiation dose in environment are described. The characteristics based on
mechanism designing of including AT89C52 as the core of system，improving multi-frequency
receiving circuit and employing both the pieces of EZ PROM twenty-four series with 12C total
line function and RS232 string served as out-circle circuit. This improvement guaranteed the
monitor system with the merits of advanced resistant capacity to outside interference and de-
tecting accuracy. This method ensures that monitor system with continuing and instant re-
sponse to the radiation dose in environment and having the reliable conversation capacity with
computer in its practical application.
Key words:，一ray;radiation dose in environment:monitor system
    随着同位素应用领域的不断拓展及应用数量
的增加，同位素仪表已在医疗诊治、建材探伤、辐照
防腐、非接触物位监测等方面发挥着不可替代的作
用.国家环保部门及各应用同位素行业对应用现场
的管理提出了新的要求，而同位素应用现场的环境
剂量监测，是应用现场管理内容中的一个重要环
节.因此各同位素应用领域及行业都急需一种测量
准确、显示直观、具有数据存贮和数据通讯能力的
放射性环境剂量监测仪.为此采取以AT89C52为

核心，把具有12C总线功能的24系列EZ PROM和
RS232串口等元件作为外围电路的设计思想;同时
采用改进的探测技术和引人了微计算机数字分析
处理技术;使得监测系统具有测量准确、反应时间
短、抗干扰能力增强、灵敏度高、在测量范围内可编
程设定参数、同时具有掉电保护和数据存储，安装
方便等特点.同时此仪表还具有以下特点.