%A FENG Shou-jun %T Statistical Analysis of Air Gap Value Measured on Large Vertical Synchromotor %0 Journal Article %D 2003 %J Journal of Drainage and Irrigation Machinery Engin %R 10.3969/j.issn.1674-8530.2003.05.012 %P 37-39 %V 21 %N 5 %U {http://zzs.ujs.edu.cn/pgjx/CN/abstract/article_1028.shtml} %8 2003-09-25 %X Applied runs test method of statistical analysis theory, air gap value measured actually is made statistical test and decided on random variable, and its eigenvalue is gained. Further using the F-test and t-test, the air gap value¡¯s mean value and variation of variance are deduced and, the confidence interval of air gap before and after the heavy repair is decided. In accordance with the statistical test result , the paper expatiated the actual meaning of the statistical analysis result , brought forward a criterion and a view which are different from the form gotten with conventional methods , for dealing with the air gap value adjust measured actually and the air gap abnormal value.