濕熱老化(hua)試(shi)驗箱溫度和濕度之間的關(guan)系

在(zai)高(gao)低(di)(di)(di)溫(wen)(wen)(wen)(wen)濕(shi)(shi)(shi)(shi)(shi)(shi)熱(re)老(lao)化(hua)試驗箱內，溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)(du)和(he)濕(shi)(shi)(shi)(shi)(shi)(shi)度(du)(du)(du)(du)(du)并不是兩個相互(hu)獨立的(de)(de)控(kong)(kong)制(zhi)(zhi)量，它們相互(hu)影響(xiang)，也就是控(kong)(kong)制(zhi)(zhi)中耦合。溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)(du)的(de)(de)變(bian)化(hua)會(hui)導(dao)致濕(shi)(shi)(shi)(shi)(shi)(shi)度(du)(du)(du)(du)(du)發生改變(bian)，通(tong)常(chang)，提(ti)(ti)高(gao)溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)(du)會(hui)使(shi)(shi)凝結(jie)的(de)(de)水(shui)(shui)蒸(zheng)(zheng)汽蒸(zheng)(zheng)發，提(ti)(ti)高(gao)高(gao)低(di)(di)(di)溫(wen)(wen)(wen)(wen)濕(shi)(shi)(shi)(shi)(shi)(shi)熱(re)試驗箱濕(shi)(shi)(shi)(shi)(shi)(shi)度(du)(du)(du)(du)(du)，而(er)降低(di)(di)(di)溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)(du)則(ze)會(hui)使(shi)(shi)一部(bu)分(fen)水(shui)(shui)蒸(zheng)(zheng)汽凝結(jie)成水(shui)(shui)滴，減(jian)小(xiao)濕(shi)(shi)(shi)(shi)(shi)(shi)度(du)(du)(du)(du)(du)。同樣(yang)濕(shi)(shi)(shi)(shi)(shi)(shi)度(du)(du)(du)(du)(du)的(de)(de)變(bian)化(hua)也會(hui)對(dui)溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)(du)產品影響(xiang)，增大濕(shi)(shi)(shi)(shi)(shi)(shi)度(du)(du)(du)(du)(du)，冷蒸(zheng)(zheng)汽的(de)(de)注(zhu)入會(hui)使(shi)(shi)高(gao)低(di)(di)(di)溫(wen)(wen)(wen)(wen)濕(shi)(shi)(shi)(shi)(shi)(shi)熱(re)試驗箱溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)(du)降低(di)(di)(di)，而(er)減(jian)小(xiao)濕(shi)(shi)(shi)(shi)(shi)(shi)度(du)(du)(du)(du)(du)過(guo)程中水(shui)(shui)蒸(zheng)(zheng)汽凝結(jie)所釋(shi)放的(de)(de)熱(re)量則(ze)會(hui)使(shi)(shi)溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)(du)提(ti)(ti)升。因而(er)在(zai)控(kong)(kong)制(zhi)(zhi)過(guo)程中，我(wo)們必須考慮耦合，在(zai)分(fen)別控(kong)(kong)制(zhi)(zhi)中，則(ze)需實現解耦。相較于溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)(du)變(bian)化(hua)對(dui)濕(shi)(shi)(shi)(shi)(shi)(shi)度(du)(du)(du)(du)(du)的(de)(de)影響(xiang)，濕(shi)(shi)(shi)(shi)(shi)(shi)度(du)(du)(du)(du)(du)變(bian)化(hua)對(dui)于溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)(du)的(de)(de)影響(xiang)要小(xiao)的(de)(de)多，可以忽略不計。即我(wo)們先對(dui)溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)(du)進行控(kong)(kong)制(zhi)(zhi)，在(zai)溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)(du)達到設定值后(hou)再對(dui)濕(shi)(shi)(shi)(shi)(shi)(shi)度(du)(du)(du)(du)(du)進行控(kong)(kong)制(zhi)(zhi)，從(cong)而(er)兩項均達到設定值，用這種方(fang)法(fa)達到解耦的(de)(de)目的(de)(de)。

延伸(shen)知(zhi)識(shi)：耦合(he)是指兩個或(huo)兩個以上的電(dian)路元件(jian)或(huo)電(dian)網絡(luo)的輸(shu)入與輸(shu)出之間(jian)存在緊密配合(he)與相(xiang)(xiang)互影響，并通過(guo)相(xiang)(xiang)互作(zuo)用從一側(ce)向另一側(ce)傳(chuan)輸(shu)能量的現象。