In this paper, the measurement of the sodium light wavelength by Michelson interferometer has been taken as an example to consider the practical significance of single measurement by analysing the uncertainty, and taking the position value of moving mirror as a direct measurement target, and the change value of moving mirror as an indirect measurement target which depends on the position value of moving mirror when the interference fringes change fifty times.In comparison with the usual processing method, it was observed that even if the displacement distance of moving mirror was taken as a direct measurement target, the instrument error could not be simply taken as the total uncertainty of B component.Taking the above two kinds of circumstances into account, the analysis of estimating uncertainty in processing the experimental data through gradual deduction method is suggested.
PAN Zhe-feng, SUN Jing-chao
. The uncertainty calculation in the experiment of measurement of sodium wavelength with michelson interferometers[J]. Journal of Shenyang Aerospace University, 2013
, 30(4)
: 89
-90
.
DOI: 10.3969/j.issn.2095-1248.2013.04.018
[1]丁慎训, 张连芳.物理实验教程[M].北京:清华大学出版社, 2002.
[2]JJFl059—1999.测量不确定度评定与表示[S].
[3]JJFl094—2002.测量仪器特性评定[S].
[4]GB3101—93.有关量、单位和符号的一般原则[S].
[5]CNAS-GI.95.测量不确定度要求的实施指南[S].
[6]GB8170—2008.数值修约规则与极限数值的表示和判定[S].
[7]丁振良.误差理论与数据处理[M].哈尔滨:哈尔滨工业大学出版社, 2002.
[8]周珺.大学物理实验教程[M].兰州:甘肃民族出版社, 2009.
