推荐回答（1个）
仪器介绍 市场上的色差仪/测色仪品种非常多，但如何选购一台符合国际标准的色差仪呢？是仪器问题还是样品发生了变化？如何评判色差仪是否准确？？
HunterLab色差仪唯一提供多重自检标准，适合中高端用户：
标准白板带数据-可溯源至NPL英国国家物理实验室或NIST美国国家标准研究院。
标准绿板带数据
钕镨滤色片，在多点检测波长漂移
荧光校正板，校正光源，溯源到德国标准
技术参数分光原理的色差测量仪器：
用一光源（或通过积分球）照射被测样品，被物体反射的光通过光栅进行分光后通过二极管矩阵得到每一波长下的光量。然后光谱数据被送到处理器，处理器根据所选择的CIE照明体数据和 2�0�2 或 10�0�2 标准观察者函数将其转换成 X、Y、Z 值。
关键词：光谱反射率、光源、检测器、校正标准。
三刺激值原理的色差测量仪器：
三刺激值色度计或色度计利用光源照射到被测样品上，光线被物体反射，然后反射的光通过红，绿，蓝滤色片以模拟某一特殊照明体的标准观察者函数（典型为C），在每一滤色片后有一光电探测头检测通过滤色片的光的数量，这些信号然后以 X, Y和Z方式显示出来。
*****，公式无法显示，请下载样本获得。
式中：X、Y、Z颜色的三刺激值，代表2 °视场的，若10 °视场为X10、Y10、Z10。
：标准照明体的光谱能量分布。
：物体色的反射率（若为透射色时，用透射率 计算）。
、 、 为1931标准色度观察者光谱三刺激值即2 °观察者的，计算X10、Y10、Z10时 、 、 为1964标准色度观察者光谱三刺激值即10°观察者。
k ：归一化系数，是将照明体（光源）的Y值调整为100时得出的。
k = 100 / ∑ Δλ
所以，对一款值得购买的色差仪来说，有很多因素值得考量，验收标准是什么？很多厂家提供了相对值的验收标准，这是非常不可靠的。
主要特点 韵鼎公司是美国HunterLab公司在中国地区的直接一级代理，也是西北华北东北西南地区的唯一总代理。
这样可以么？
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