Spectral irradiance measurement of light sources used for the weatherability test of polymer materials.

Minematu Yoiti

doi:10.2324/gomu.58.33

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Other Title

高分子材料の耐天候性試験における暴露光源の分光放射照度の測定方法
コウブンシザイリョウノタイテンコウセイシケンニオケルバクロコ

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Description

Photoelectric measurement procedures for the determination of spectral irradiance of light sources used for the weatherability test of polymer materials in comparison with the spectral irradiance standard bromine lamp (continuous spectrum) were given. Spectral irradiance of light sources having a continuous spectrum E_λ Wm^-2nm^-1) may be calculated by proportional relation of photocurrent, but when light sources to be measured have a line spectrum, it is necessary to know the band width of monochrometor used to calculate the spectral irradiance of each line spectrum E(λ) (Wm^-2). The effect of tempetature to the spectral sensitivity of photo-multiplier tube (PMT) R 106 was determined, and it was found that stable monitor measurement can be made even when ambient tempetature fluctuate considerably as in the polymer exposure station, as long as the temperature of PMT is automatically regulated to about 30°C.

Journal

NIPPON GOMU KYOKAISHI

NIPPON GOMU KYOKAISHI 58 (1), 33-38, 1985

THE SOCIRETY OF RUBBER SCIENCE AND TECHNOLOGYY, JAPAN