Integrating spher are used for measurements of the reflectance or tranittance from sampl, which are scattering, because they collect the entire radiation going into the hemisphere. The detectors are placed in the sphere-wall and see a radiation density, which are uniform at each part of the sphere wall and directly proportional to the hemispherical reflectance or tranittance of the sample.
The spher are useful for the specular measurement of plane sampl, too, because difficult adjustment of the detectors could be avoided. This fact is important for in-line measurements, pecially. 

用于測(cè)量積分球的反射或散射從樣品,因?yàn)樗麄兪占麄€(gè)輻射進(jìn)入大腦半球。探測(cè)器固定放置在sphere-wall,看見(jiàn)一個(gè)輻射密度,在每一部分是均勻的球體的墻壁和直接成正比的,并在此基礎(chǔ)上提出樣品的反射或。這些球是有用的高光測(cè)量飛機(jī)的樣品,也因?yàn)槔щy的調(diào)整檢測(cè)器的可以避免的。這很重要,是在線測(cè)量。

Different wall materials are available:不同的墻體材料可供選擇:

Barium-sulphate or PTFE for the solar range (0.3µm to 2.5µm) Barium-sulphate或聚四氟乙烯為太陽(yáng)能范圍(0.3µm到2.5µm)

Diffuse-gold for the infrared range (1µm – 25µmDiffuse-gold為紅外范圍(1µm - 25µm