棉结在线检测系统中的光源选择。
FD OCT的两种类型广泛应用于研究领域，这两种类型根据光源和使用的检测器进行区分。
Two types of FD OCT are widely used in research, and are differentiated based on the combination of the source and detector used.
在本系统中，选用LED光源和畸变小的镜头作为视觉检测系统的照明光源和成像镜头，为精密测量提供了高质量的图像。
The LED light source and lenses with little distortion are selected as light sources and lens of imaging for inspection system, which provide high quality images during precise inspection.
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