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紫外燈管模擬陽(yang)光(guang)?冷凝(ning)模仿(fang)自然(ran)潮濕(shi)(shi)UV模擬對(dui)(dui)陽(yang)光(guang)、潮濕(shi)(shi)和(he)溫(wen)度(du)對(dui)(dui)材料的破(po)壞作用。在幾天或(huo)幾周的時(shi)間內，QUV可(ke)模擬再現(xian)戶外可(ke)能幾個月或(huo)幾年(nian)發(fa)生的損壞。材料老化包(bao)括褪色、失(shi)光(guang)、強度(du)降低、開裂(lie)、剝落、粉化和(he)氧化等。ＵＶ的熒光(guang)紫外等可(ke)以(yi)再現(xian)陽(yang)光(guang)的影響，冷凝(ning)和(he)水(shui)(shui)噴淋系統(tong)可(ke)以(yi)再現(xian)雨(yu)水(shui)(shui)和(he)露水(shui)(shui)的影響。整個的測(ce)試(shi)循(xun)環(huan)中，溫(wen)度(du)都是可(ke)控的。測(ce)試(shi)概述測(ce)試(shi)樣品暴露在UV的測(ce)試(shi)室中，典型的測(ce)試(shi)循(xun)環(huan)通常是高溫(wen)下的紫外光(guang)照(zhao)射和(he)相對(dui)(dui)濕(shi)(shi)度(du)在100％的黑(hei)暗潮濕(shi)(shi)冷凝(ning)周期。在一些測(ce)試(shi)中，我們還要用到(dao)水(shui)(shui)噴淋裝置(zhi)。常用的...

“真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)度(du)”顧名思義(yi)就是真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)的(de)程(cheng)度(du)。是真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵(beng)、微(wei)型真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵(beng)、微(wei)型氣(qi)泵(beng)、微(wei)型抽氣(qi)泵(beng)、微(wei)型抽氣(qi)打氣(qi)泵(beng)等抽真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)設(she)備的(de)一個主要參數。所(suo)謂“真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)“，是指在給(gei)定(ding)的(de)空(kong)(kong)(kong)(kong)間(jian)內，壓(ya)(ya)強(qiang)低(di)于(yu)101325帕斯卡（也即(ji)一個標準大氣(qi)壓(ya)(ya)強(qiang)約(yue)101KPa）的(de)氣(qi)體狀態。在真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)狀態下，氣(qi)體的(de)稀(xi)薄(bo)(bo)程(cheng)度(du)通常用(yong)氣(qi)體的(de)壓(ya)(ya)力(li)值(zhi)來(lai)表示，顯然，該(gai)壓(ya)(ya)力(li)值(zhi)越(yue)小則表示氣(qi)體越(yue)稀(xi)薄(bo)(bo)。對于(yu)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)度(du)的(de)標識(shi)通常有兩種方法：一是用(yong)“壓(ya)(ya)力(li)”、“真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)度(du)”（即(ji)比“理論真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)”高多少(shao)壓(ya)(ya)力(li)）標識(shi)；在實際(ji)情況(kuang)中，真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵(beng)的(de)壓(ya)(ya)力(li)值(zhi)介(jie)于(yu)0～101.325KPa之間(jian)。壓(ya)(ya)力(li)...