絶對濕度:指單(dan)位容積的空氣里實際(ji)所含的水汽(qi)量,一(yi)般(ban)以克為單(dan)位。溫(wen)度對絶對濕度有著(zhu)直接影響,一(yi)般(ban)情況(kuang)下(xia),溫(wen)度越(yue)高,水蒸氣發得(de)越(yue)多,絶對濕度就越(yue)大;相反,絶對濕度就小。

　　飽(bao)和濕度(du)(du):在壹定溫(wen)(wen)度(du)(du)下,單位容(rong)積(ji)(ji),空(kong)氣(qi)中所能(neng)容(rong)納(na)的水汽量的大限(xian)度(du)(du)。如果(guo)過這個(ge)限(xian)度(du)(du),多余(yu)的水蒸氣(qi)就(jiu)會疑結(jie),變成水滴,此時的空(kong)氣(qi)濕度(du)(du)變稱為飽(bao)和濕度(du)(du)。空(kong)氣(qi)的飽(bao)和濕度(du)(du)不(bu)是(shi)固定不(bu)變的,密析爾(er)溫(wen)(wen)濕度(du)(du)傳感(gan)器隨(sui)著溫(wen)(wen)度(du)(du)的變化而變化。溫(wen)(wen)度(du)(du)越高,單位容(rong)積(ji)(ji)空(kong)氣(qi)中能(neng)容(rong)納(na)的水蒸氣(qi)就(jiu)越多,飽(bao)和濕度(du)(du)就(jiu)越大。

　　露(lu)點(dian):指含有(you)壹定量水(shui)(shui)(shui)(shui)蒸氣(qi)(qi)(qi)(絶對濕(shi)度(du))的空氣(qi)(qi)(qi),當溫(wen)(wen)度(du)下(xia)降(jiang)到(dao)(dao)壹定程(cheng)度(du)時所含的水(shui)(shui)(shui)(shui)蒸氣(qi)(qi)(qi)就會(hui)達到(dao)(dao)飽(bao)和(he)(he)狀態(飽(bao)和(he)(he)濕(shi)度(du))并(bing)開始液化成水(shui)(shui)(shui)(shui),這種現象叫(jiao)做(zuo)疑露(lu)露(lu)。水(shui)(shui)(shui)(shui)蒸氣(qi)(qi)(qi)開始液化成水(shui)(shui)(shui)(shui)時的溫(wen)(wen)度(du)叫(jiao)做(zuo)“露(lu)點(dian)溫(wen)(wen)度(du)”簡(jian)稱“露(lu)點(dian)”。溫(wen)(wen)濕(shi)度(du)傳(chuan)感器如果溫(wen)(wen)度(du)繼續下(xia)降(jiang)到(dao)(dao)露(lu)點(dian)以下(xia),空氣(qi)(qi)(qi)中(zhong)過飽(bao)和(he)(he)的水(shui)(shui)(shui)(shui)蒸氣(qi)(qi)(qi)就會(hui)在(zai)物體表面(mian)上疑結成水(shui)(shui)(shui)(shui)滴。此外(wai),風與空氣(qi)(qi)(qi)中(zhong)的溫(wen)(wen)濕(shi)度(du)有(you)密切關(guan)系,也是(shi)影(ying)響空氣(qi)(qi)(qi)溫(wen)(wen)濕(shi)度(du)變化的重(zhong)要因素之一。常用產品為(wei)羅卓尼克(ke)溫(wen)(wen)濕(shi)度(du)露(lu)點(dian)變送器。