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前言近一、二十年来,旋转针测定透明矿物的光学性质有了广泛的发展和应用。该仪器结构简单,操作方便,测量速度快、精度高,越来越受欢迎。笔者利用云南省地质局中心实验室施加辛、江鑫培同志设计,江苏实验室仪器厂生产的三轴旋转针台,介绍测定主折射率、2 V 角、光性正、负等光学数椐的主要操作方法、步骤。因水平有限,错误定所难免,恳求广大读者或试者提出批评指正。
Preface In the past one or two decades, the optical properties of the rotating needle for the determination of transparent minerals have been extensively developed and applied. The instrument has the advantages of simple structure, convenient operation, high measuring speed, high precision and more and more popularity. The author uses the Geophysical Laboratory of Yunnan Province Geaxin, Jiang Xinpei design, Jiangsu laboratory equipment factory production of three-axis rotary needle Taiwan, introduced the determination of the main refractive index, 2 V angle, optical positive and negative optical index 椐 the main Operation method, steps. Due to the limited level, the error is inevitable, implore the majority of readers or testers to criticize and correct.