計(jì)量論壇

標(biāo)題: 高溫環(huán)境下相對濕度測量誤差及干濕球系數(shù)計(jì)算 [打印本頁]

作者: 上帝 時間: 2009-3-8 14:49
標(biāo)題: 高溫環(huán)境下相對濕度測量誤差及干濕球系數(shù)計(jì)算
黃曉因[1] 徐麗芬[2]
[1]云南農(nóng)業(yè)大學(xué)計(jì)算機(jī)科學(xué)系,昆明650201 [2]云南農(nóng)業(yè)大學(xué)氣象教研室,昆明650201
摘　要:對干濕球系數(shù)A與環(huán)境溫度t的關(guān)系進(jìn)行了研究。結(jié)果指出，A不僅與風(fēng)速有關(guān)，也與環(huán)境溫度有關(guān)，如果不考慮風(fēng)速和環(huán)境溫度，使用干濕球測濕法獲得的測量結(jié)果沒有使用價值。t〉40℃以后，隨著t的升高，使用A的擬合公式計(jì)算得到的相對濕度值其誤差愈來愈大，在相對濕度較低時情況更為明顯。為此提出了在40℃〈t〈80℃范圍內(nèi)A的計(jì)算公式。經(jīng)驗(yàn)證，使用此計(jì)算公式獲得A值后再計(jì)算出相對濕度，其誤差小于1．4％。[著者文摘]

Measuring Error Analysis of Relative Humidity and Calculation of Psychrometric Coefficient at High TemperatureHuang XiaoYin;Xu LiFenHuang XiaoYin;Xu LiFenAbstract:The relationship between psychrometric coefficient A and ambient temperature was studied. It was pointed out that when temperature is higher than 40 ℃ , the error of the relative humidity obtained according to the formula of psychrometric coefficient A increases with temperature. It is more evident when temperature is higher and relative humidity is lower. A new formula of coefficient A was presented and it has higher veracity. Tests indicate that the error of the relative humidity obtained according to the new formula is lower than 1.4 % RH.[著者文摘]

Key words:psychrometer coefficient, ambient temperature, relative humidity, calculation

高溫環(huán)境下相對濕度測量誤差及干濕球系數(shù)計(jì)算.pdf

171.19 KB, 下載次數(shù): 29, 下載積分: 金幣 -1

歡迎光臨計(jì)量論壇 (http://www.bkd208.com/)