真空与低温
真空與低溫
진공여저온
VACUUM AND CRYOGENICS
2014年
1期
19-22
,共4页
王强庆%薛长利%丁勤
王彊慶%薛長利%丁勤
왕강경%설장리%정근
检漏%最小二乘法%不确定度%评定方法
檢漏%最小二乘法%不確定度%評定方法
검루%최소이승법%불학정도%평정방법
leak test%least square method%uncertainty estimation%evaluation method
航天器检漏中需要进行线性参数拟合及其不确定度的评定。采用最小二乘法建立线性方程的斜率公式，推导斜率的A类及B类不确定度的计算公式，对其进行合理简化及影响分析。最后，实例说明该方法的具体应用。
航天器檢漏中需要進行線性參數擬閤及其不確定度的評定。採用最小二乘法建立線性方程的斜率公式，推導斜率的A類及B類不確定度的計算公式，對其進行閤理簡化及影響分析。最後，實例說明該方法的具體應用。
항천기검루중수요진행선성삼수의합급기불학정도적평정。채용최소이승법건립선성방정적사솔공식，추도사솔적A류급B류불학정도적계산공식，대기진행합리간화급영향분석。최후，실례설명해방법적구체응용。
The bottleneck in the linear parameter fitting and its uncertainty evaluation in spacecraft leak test are dicta-ted. By using the least square method, the calculation formula for slope parameter in linear equation was derived. And the calculation formulae for both type A and type B uncertainty of the slope were derived consequently. Then the formulae were simplified and proved to be effective. In the end the applying process for the formulae were demonstrated via an example.
