颜色测量仪器的几何结构对陶瓷颜色测量的影响研究

Effects of Geometric Structure of Color Measuring Instrument on Ceramic Color Measurement

利用"0°/45°测量结构"与"d/8°积分球测量结构"的分光光度计分别对陶瓷颜色样品进行测量,并通过对色度数据中的L*值、a*值、b*值、C*ab值,以及DE*ab值进行对比分析,研究颜色测量仪器的几何结构对陶瓷颜色测量的影响。实验结果表明,"0°/45°/测量结构"与"d/8°积分球测量结构"SPEX条件下的测量值差距比较稳定,DL*值平均值为2.48,Da*值平均值为0.63,Db*值平均值为0.59,DE*ab平均值为2.69;而"0°/45°/测量结构"与"d/8°积分球测量结构"SPIN条件下的测量值的差距是不稳定的,与测量色块的明度、饱和度有很大关系。颜色测量仪器各种几何结构各有自己的特点和优势,不同结构仪器测量得到的数据必然不同,但数据间具有一定的关联性。

Ceramic color samples were measured using measurement instruments with the 00/45~ geometric structure and the d/8~ integrating sphere. The effects of the geometric structure of a color measuring instrument on ceramic color measurement were then studied by comparing the color data, including the values ofL＇, a＇, b＇, C＇~b, and DE＇~b. The results indicated that the gap between the measured values by instruments with 0°/45° geometric structure and d/8 integrating sphere （under SPIN condition） is not stable, which has a close relationship with the measured color＇s brightness and saturation; but it （under SPEX condition） is more stable, the average DL＊ value is 2.48, the average Da＂ value is 0.63, the average Db＊ value is 0.59, and the average DE＊ab value is 2.69. Various geometric structure of color measurement instrument has its own characteristics and advantages, and the data must be different with the instrument structure, but there is some correlation between the data.