基于单片机的累积法测量氡析出率数据处理方法  

Data Processing Method of Accumulation Method for Measuring Radon Exhalation Rate Base on Single Chip Microprocessor

作　　者：谭延亮[1,2] 肖田[1] 周毅[1] 于旭晖[1] 

机构地区：[1]衡阳师范学院物理与电子信息科学系,湖南衡阳421008 [2]南华大学核科学技术学院,湖南衡阳421001

出　　处：《衡阳师范学院学报》2009年第6期40-42,共3页Journal of Hengyang Normal University

基　　金：第一批湖南省大学生研究性学习和创新性试验计划资助项目(226)

摘　　要：累积法测量氡析出率需要对多次等时间间隔测量的氡浓度数据进行线性拟合,最后求得氡析出率。实际中一般使用单片机作为氡析出率测量仪的主控芯片,单片机只能进行一般的代数运算,无法通过矩阵运算直接进行线性拟合运算,用单片机进行数据处理就显得非常不方便。该文从最小二乘法出发得到了适合单片机计算氡析出率的代数表达式。Accumulation method for measuring radon exhalation rate need linear fit the Radon concentration data which measured equal time interval time after time, gain the Radon exhalation rate at last. In fact, single chip microprocessor is often used as main control chip for Radon exhalation rate measuring, it can only process the algebra operation, and can＇t process linear fit straight by matrix operation. It is much discommodiousness to process data by single chip microprocessor. Analysis linear fit of by least squares method, we find the algebra expression suited single chip microprocessor to calculate the Radon exhalation rate.

关 键 词：累积法 氡析出率 线性拟合 

分 类 号：TL751[核科学技术—辐射防护及环境保护]