祥子
第4楼2009/02/12
这个好像是说,测试420nm处的光学指数。
用google查到的一个说法
optical index
1. n. [Production Logging] ID: 10878
A measure of the amount of light reflected by a fluid from an optical probe. It is the same as the relative refractive index of light between the probe and the fluid, being close to 1 in gas, 1.35 in water and 1.5 in oil.
这么说就是tutm说的反光率了。
还一个说法:
光学指数(表示液体粘度与折光率之间的关系)
您就直接问客户是指透过率还是反射率好了,让他给个说法。