The space scan method of wavelength is put forward for the principle of the dual FFPI sensor measuring precise surface roughness, and its basic construction is discussed.
针对双光纤f—p干涉仪测量高精度表面粗糙度的原理，提出波长的空间扫描方法，并对其构成进行了分析。
The space scan method of wavelength is put forward for the principle of the dual FFPI sensor measuring precise surface roughness, and its basic construction is discussed.
针对双光纤f—p干涉仪测量高精度表面粗糙度的原理，提出波长的空间扫描方法，并对其构成进行了分析。
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