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依据JJG 518—1998《皮托管》、JJG 640—1994《差压流量计》的检测方法,并参照了JJF(辽)81—2010《热式风速仪校准规范》对于风速类测量仪表不确定度的评定方法,对风量罩的不确定度进行了分析和评定。
According to JJG 518-1998 “pitot tube”, JJG 640-1994 “differential pressure flowmeter” detection method, and with reference to the JJF (Liao) 81-2010 “thermal anemometer calibration specification” for wind speed measuring instrument uncertainty Of the assessment method, the uncertainty of the air volume cover were analyzed and assessed.