对于火炮这样一些设备，则采用机械式刻度盘及光学分划装置加以测量。

For some equipment like artillery, it USES mechanical dials and optical division equipment to measure.

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使用光纤锥可以通过其产生的倏逝场，来耦合微盘腔中的回音壁模式，从而获得对微盘腔光学性质的考察。

A fiber taper can evanescently couple to whispering gallery modes (WGMs) in a planar silica microdisk for observing the optical properties of the microdisk cavity.

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与传统绝对式光学编码器相比，码盘直径小、光学图案简单，有利于绝对式编码器实现小型化和提高精度。

The serial encoding method can reduce the diameter of the code disk and simplify the optical pattern, in favour of miniaturization and high precision of the absolute encoder.

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