一种用来研究偏振光下矿物的晶体结构的光学仪器，也不再被使用。
The "stauroscope", an optical instrument for studying the crystal structure of minerals under polarized light, is also no longer used.
对保偏光纤中的偏振耦合点进行了测试，根据实验数据计算出了光纤中耦合点的位置及耦合强度，从实践上验证了仪器测试原理的正确性与可行性。
Make a experiment on PMF, and calculate the coupling intensity and position along the PMF. Verify the correctness and feasibility of the principle of the instrument in practice.
针对研制仿生微纳导航传感器的需要，设计了一种基于虚拟仪器的仿生偏振光测试系统。
The model and the device for the bionic polarized light test and the overall framework of the test system were introduced.
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