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氙弧燈耐氣候老化試驗箱中黑板測量溫度的條件

北京鴻達天矩氙弧燈耐氣候老化試驗箱黑板測量溫度的條件氙燈老化試驗箱試驗樣品的表面溫度是不可能被準(zhǔn)確斷定的，這是因為被暴露材料的高表面溫度主要依賴于輻射吸收、輻射發(fā)射、試驗樣品內(nèi)部熱傳導(dǎo)、試驗樣品與空氣或與試樣架之間的熱傳遞。由于檢測單個試驗樣品的溫度不夠?qū)嶋H，所以我公司使用特定的黑板來作為測定和控制溫度的感溫件。

黑板溫度計與黑標(biāo)準(zhǔn)溫度計的本質(zhì)區(qū)別在于黑板的絕熱底座。淺色或熱導(dǎo)性好的試樣表面溫度一般低于黑標(biāo)準(zhǔn)溫度計所顯示的溫度，所以黑標(biāo)準(zhǔn)溫度計顯示導(dǎo)熱性差的深色試樣暴露面的溫度。不同型號的黑板溫度計和黑標(biāo)準(zhǔn)溫度計適用于不同型號的氙燈老化試驗機。

黑標(biāo)準(zhǔn)溫度或黑板溫度也會受周圍空氣溫度和風(fēng)速的影響。在低輻照度條件下，黑板溫度計或黑標(biāo)準(zhǔn)溫度計顯示的溫度與試樣真實溫度之間的差異很小。
中譯英：Beijing hong da day moment xenon arc lamp weather aging test box in the blackboard measuring temperature condition of the surface temperature of the xenon lamp aging test chamber test sample is impossible to know exactly, this is because the exposed materials mainly depends on the highest surface temperature of the internal heat conduction radiation absorption and radiation emission, test samples, test samples with air or with heat transfer between the specimen holder. Due to the temperature is not the actual measurement of a single test samples, so I use a specific company to the blackboard as a measure and control the temperature of heat.

The board with black standard thermometer thermometer is the essential difference between the blackboard adiabatic base. Light and heat conductivity of good sample surface temperature generally under standard thermometer shows the temperature of the black, so black standard thermometer shows dark specimens exposed surface temperature of poor thermal conductivity. Different models of the blackboard and black standard thermometer thermometer is suitable for the different models of xenon lamp aging tester.

Black standard temperature or the blackboard temperature will be influenced by the surrounding air temperature and wind speed. Under the condition of low irradiance, the blackboard or black standard thermometer thermometer shows the temperature and real temperature difference between the sample is very small.