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发明名称
以半导体激光二极管为光源的光电传感器
摘要
本实用新型是一种用于检测物体通过的光电传感器。以半导体激光二极管为发光器件,以硅光电池为光敏元件,利用平面镜反射激光二极管发射的激光束,在检测截面构成一个光束间隙可调的“激光束栅格”。特点一是对检测截面具有良好的覆盖性能,没有检测不到的“盲区”;二是物体通过时能够彻底阻断光线,可获得强而恒定的电信号输出。本传感器适用于检测颗粒物料的通过,比如播种机的排种检测。
申请公布号
CN2483717Y
申请公布日期
2002.03.27
申请号
CN01220058.1
申请日期
2001.04.25
申请人
史智兴
发明人
史智兴
分类号
G01N21/27
主分类号
G01N21/27
代理机构
代理人
主权项
1.以半导体激光二极管为发光器件的检测物体通过的光电传感器,其特征是利用激光二极管所发出的激光束的光线强和良好会聚性,通过对激光束多次反射,构成一个覆盖整个检测截面的“激光束栅格”。
地址
071001河北省保定南关河北农大计算中心
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