The exact measurement on switching time provides reference for optical switches using in different field.

准确测量光开关的转换时间为其应用在不同领域提供了参考。

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Optical fibres - Part 1-45: measurement methods and test procedures - Mode field diameter.

光纤。第1 - 45部分：测量方法和试验规程。模场直径。

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The principle of holographic ct measurement is introduced briefly, and to the reconstruction of axis symmetry field measured by optical ct, zoned method is discussed.

简要讨论全息CT测量原理，针对光学CT测量中轴对称场的重构问题讨论了环带法。

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