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前言金属矿物的反射率如同透明矿物的折射率一样,是鉴定及研究矿物时极其重要的一个光学常数.目前,它的测定方法很多,按这些方法的性质可归纳为两类,即光度计法和光电计法.笔者由1960年开始应用硫化镉光电阻法来测定矿物反射率,经过三年反复试验与校核,证明这一方法性能较好,灵敏度较高,元件成本低廉,安装技术简单,在一般实验室的条件下均能安装.本文主要介绍光电阻在矿物反射率测定上的应用.
The reflectivity of metallic minerals, like the refractive index of transparent minerals, is an extremely important optical constant for the identification and study of minerals. At present, there are many measurement methods for these minerals. The properties of these methods can be summarized into two categories, And photoelectric meter method.I began to apply cadmium sulfide photo resistance method to measure the mineral reflectivity from 1960. After three years of repeated tests and checks, this method has been proved to have better performance, higher sensitivity, lower component cost and simple installation technology , Can be installed in the general laboratory conditions.This paper mainly introduces the application of optical resistance in mineral reflectivity measurement.