目录
1 范围·········。······，，·，，·····。·‘······，，···········‘··，，，，，，·················，，·，-········一(1)
2 引用文献········································································，·，········⋯⋯ (1)
3 概述·························································································⋯⋯ (1)
3.1 原理·············································................................................(1)
3.2 计算公式·············4··············，·，··············································⋯⋯ (2)
4 计量性能要求······，····················，·········································，········⋯⋯ (3)
4.1 稳定性····················································································⋯⋯ (3)
4.2 重复性····················································································⋯⋯ (3)
4.3 复现性·············，··...................................··，··················，········⋯⋯ (3)
4.4 示值误差··············‘····，，，·，，··，，， ·····················，，·············‘···‘·一(3)
4.5 配套工作标准板········································································⋯⋯ (3)
5 通用技术要求··············································································⋯⋯ (3)
5.1 外观·............................................................................................(3)
5.2照明与观测条件·............................................···········.................. ( 4 )
6 计量器具控制·····，·，-··············。·，。··················，·············。············⋯⋯ (4)
6.1 检定条件··············································································⋯⋯ (4)
6.2 检定项目················································································⋯⋯ (4)
6.3 检定方法·..................................................···················，·········⋯⋯ (4)
6.4 检定结果的处理·········.................................·············，·，·········⋯⋯(5)
6.5 检定周期········，·······································，·，，，。·················，·········⋯⋯ (5)
附录A 关于测色色差计和色度计的照明与观测条件的规定·····················⋯⋯ (7)
附录B 测色色差计响应值与三刺激值的关系······································⋯⋯ (s)
附录c 检定证书内页格式····································..................·····⋯⋯ (io>
附录D 标准照明体和光谱三刺激值的加权系数表，，，，·· ‘···，··，···············一(11)
7dG 595- 2002
测色色差计检定规程
范围
本 规 程 适用于光电积分式测色色差计的首次检定、后续检定和使用中检验。光电积
分式测色色差计的定型鉴定、样机试验中对计量性能的要求可参照本规程执行。
2 引用文献
GB/T 5698-2001 《颜色术语》
GB/T 3978-1994 《标准照明体及照明观测条件》
使用本规程时，应注意使用上述引用文献的现行有效版本。
3 概述
3.1 原理
测 色 色 差计用于测量非荧光物体表面色及色差。测色色差计(包括色度计，以下
同)由照明系统、探测系统及数据处理系统三大部分组成，其输出结果(或经必要的数
学处理)即为三刺激值X, Y,Z (或几。，I'loI Z ,o)， 经计算得出色品坐标x,y 或色
差。
按 国 际 照明委员会(CIE)所推荐的测色原理，仪器的总光谱灵敏度(光源、光学
系统、探测器三者的综合响应)应符合式(1)或式(2)的关系:
对 于 C/ 20:
K,S(A)二二(A)Y(A)=Sc(A)二(A)
凡S(A)r,(A )Y(A)=Sc(A)Y(A)
K3S(A)r,(A )y(A)=S,(A)Z(A)
(1)
对于氏/100:
‘.S(A):二(A)Y(A)=SD(A)无io(A)
KZS(A)ry(A)Y(A)=S.(A)y,o(A)
K3S(A):二(A)Y(A)=SD(A).,o(A)
(2)
式中: S(劝— 仪器光源的相对光谱功率分布;
Sc 拟 )IS .( A ) — 分 别 为标准照明体C与标准照明体D6，的相对光谱功率分
布 ;
K K 2,K 3— 与 波 长 无 关 的 常 数 ;
r二( 劝 ，二， (劝,r,(A)— 仪器中拟合人眼色觉特性的修正滤光器的相对光谱透射
比 ;
无( A) ,Y (A ),牙 (劝- CIE1 931标准观察者光谱三刺激值;
xlo (A ), Ylo(.l),Zlo(A)- CIE1 964标准观察者光谱三刺激值;
JJG 595- 2002
Y( 劝 — 仪 器 探 测 器 未 加 修 正 滤 光 器 前 的 相 对光谱响应度。
通 常 把 满足公式(1),( 2)的测色条件称作卢瑟条件。
仪 器 符 合卢瑟条件的程度，决定着仪器测色准确度的高低。为了减少由于卢瑟条件
不够满足而导致的测色误差，应为仪器配备适当的专用工作色板，用来分别校正仪器。
对于满足卢瑟条件的仪器，仅配上工作标准白板即可。而对于偏离卢瑟条件较严重的仪
器，应配足能覆盖相应测色范围的专用工作色板。
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