扫描光束
The improved optical scanning system consisting of a beam expander, a galvanometric scanner with automatic self-calibra-tion and an f-theta lens can get a laser light spot with the diameter of 0.012 mm on the focal plane.
由扩束镜、高精度扫描振镜及f-θ透镜构成扫描系统,扫描面上的激光光斑直径达到0.012mm。
Unlike the previous few tablets machine identification number in mind principle, the paper changed the design of single-beam system-the principle of using dynamic infrared scanning beam of light through a variety of methods accurately identify the shape and number of pills.
不同于以往的数粒机记数识别原理,论文所设计的系统改变了单束光检测的原理,采用红外线动态扫描的方法通过多束光线准确识别药片的形状和数目。
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