一种直接测定2V和光率体定位的多用三轴针台

作     者：施加辛 

作者机构：云南省地质局实验室 

出 版 物：《地球化学》 (Geochimica)

年 卷 期：1980年第9卷第1期

页      面：85-90页

学科分类：0709[理学-地质学] 070901[理学-矿物学、岩石学、矿床学] 07[理学] 

主　　题：主折射率 矿物学 光率体 三轴针台 

摘      要：A new three-axis spindle stage has. been developed for the direct measurement of 2V and indicatrix orientation determination. Its design is simple and can be manufactured without difficult. The result obtained is reliable and can be checked readily. This spindle stage possesses the advantages over the extinetion curve method, conoseope method-and a number of computational approachs based on one-axis spindle stage of being simpler to operate and of providing more accurate results. One further advantage of this apparatus over the spindle modified by *** is such that measurement, can be made over wide range of angle (35°--87°)between optieal axis plane and the needle axis. Measured mineral can be removed for X-ray structural analysis and electron microprobe analysis if necessary. It can also be used as a oneaxis spindle stage or the variable axis spindle stage proposed by H. Villarroal et ***-variation apparatus can be attached to it for single, and double variable oil immersion methods.