<**n style="font-family: Tahoma; color: rgb(102, 102, 102); letter-**cing: 0pt; font-size: 12pt;">1、**n><**n style="font-family: Tahoma; color: rgb(102, 102, 102); letter-**cing: 0pt; font-size: 12pt;">干濕球法**n><**n style="font-family: Tahoma; color: rgb(102, 102, 102); letter-**cing: 0pt; font-size: 12pt;">
<**n style="font-family: Tahoma; color: rgb(102, 102, 102); letter-**cing: 0pt; font-size: 12pt;">2、**n><**n style="font-family: Tahoma; color: rgb(102, 102, 102); letter-**cing: 0pt; font-size: 12pt;"> 干濕球法是一種直接方法,它用干濕球方程換算出濕度值,而此方程是有條件的:即在濕球四周的風(fēng)速必須到達(dá)2.5m/s以上。普通用的干濕球溫度計(jì)將此條件簡(jiǎn)化了,所以其正確度只有5~7%RH,干濕球也不屬于靜態(tài)法,不要儉樸地認(rèn)為只需前進(jìn)兩支溫度計(jì)的測(cè)量精度就便是前進(jìn)了濕度計(jì)的測(cè)量精度。**n><**n style="font-family: Tahoma; color: rgb(102, 102, 102); letter-**cing: 0pt; font-size: 12pt;">
<**n style="font-family: Tahoma; color: rgb(102, 102, 102); letter-**cing: 0pt; font-size: 12pt;">3、**n><**n style="font-family: Tahoma; color: rgb(102, 102, 102); letter-**cing: 0pt; font-size: 12pt;"> 2、動(dòng)態(tài)法:**n><**n style="font-family: Tahoma; color: rgb(102, 102, 102); letter-**cing: 0pt; font-size: 12pt;">
<**n style="font-family: Tahoma; color: rgb(102, 102, 102); letter-**cing: 0pt; font-size: 12pt;">4、**n><**n style="font-family: Tahoma; color: rgb(102, 102, 102); letter-**cing: 0pt; font-size: 12pt;"> 根據(jù)熱力學(xué)P、V、T平衡原理,平衡時(shí)間較長(zhǎng),分流法是根據(jù)濕氣和干空氣的**n><**n style="font-family: 宋體; color: rgb(102, 102, 102); letter-**cing: 0pt; font-size: 12pt;">目前**n><**n style="font-family: Tahoma; color: rgb(102, 102, 102); letter-**cing: 0pt; font-size: 12pt;">混合。由于采用了現(xiàn)代測(cè)控手法,這些設(shè)備能夠做得相稱精密,卻因設(shè)備復(fù)雜,貴重,運(yùn)作費(fèi)時(shí)費(fèi)工,主要作為尺度計(jì)量之用,其測(cè)量精度可達(dá)±2%RH以上。**n><**n style="font-family: Tahoma; color: rgb(102, 102, 102); letter-**cing: 0pt; font-size: 12pt;">
<**n style="font-family: Tahoma; color: rgb(102, 102, 102); letter-**cing: 0pt; font-size: 12pt;">5、**n><**n style="font-family: Tahoma; color: rgb(102, 102, 102); letter-**cing: 0pt; font-size: 12pt;"> 3、靜態(tài)法**n><**n style="font-family: Tahoma; color: rgb(102, 102, 102); letter-**cing: 0pt; font-size: 12pt;">
<**n style="font-family: Tahoma; color: rgb(102, 102, 102); letter-**cing: 0pt; font-size: 12pt;">6、**n><**n style="font-family: Tahoma; color: rgb(102, 102, 102); letter-**cing: 0pt; font-size: 12pt;"> 飽和鹽法是濕度測(cè)量中常見的方法,儉樸易行。但飽和鹽法對(duì)液、氣兩相的平衡要求很嚴(yán),恒溫恒濕試驗(yàn)箱對(duì)環(huán)境溫度的不亂要求較高。用起來要求等很長(zhǎng)時(shí)間去平衡,低濕點(diǎn)要求更長(zhǎng)。特別在室內(nèi)濕度和瓶?jī)?nèi)濕度差值較大時(shí),每次開啟都需求平衡6~8小時(shí)。**n><**n style="font-family: Tahoma; color: rgb(102, 102, 102); letter-**cing: 0pt; font-size: 12pt;">
<**n style="font-family: Tahoma; color: rgb(102, 102, 102); letter-**cing: 0pt; font-size: 12pt;">7、**n><**n style="font-family: Tahoma; color: rgb(102, 102, 102); letter-**cing: 0pt; font-size: 12pt;"> 4、電子式濕度傳感器法**n><**n style="font-family: Tahoma; color: rgb(102, 102, 102); letter-**cing: 0pt; font-size: 12pt;">