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高(gao)低溫濕熱試驗(yan)箱適(shi)用(yong)于航空航天產(chan)品、各(ge)種(zhong)電(dian)子元器件(jian)及材(cai)(cai)料(liao)在高(gao)溫、低溫或濕熱環境下，檢驗(yan)其可靠(kao)性(xing)各(ge)項性(xing)能(neng)(neng)(neng)指標的儀器設備。 高(gao)溫時可測試產(chan)品零件(jian)、材(cai)(cai)料(liao)可能(neng)(neng)(neng)發(fa)生(sheng)軟(ruan)化(hua)、效能(neng)(neng)(neng)降低、特性(xing)改(gai)變(bian)、潛(qian)在破壞、氧化(hua)等(deng)現象（如：填(tian)充物和密封(feng)條軟(ruan)化(hua)或融化(hua)、電(dian)子電(dian)路穩(wen)定(ding)性(xing)下降，絕(jue)(jue)緣損(sun)壞、加速高(gao)分(fen)子材(cai)(cai)料(liao)和絕(jue)(jue)緣材(cai)(cai)料(liao)老(lao)化(hua)等(deng)）；在低溫時可測試產(chan)品零件(jian)、材(cai)(cai)料(liao)可能(neng)(neng)(neng)發(fa)生(sheng)龜裂、脆化(hua)、可動部卡死、特性(xing)改(gai)變(bian)等(deng)現象（如：材(cai)(cai)料(liao)發(fa)硬變(bian)脆、電(dian)子元器件(jian)