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1. 发明授权

US5313508A Method of and apparatus for detecting and counting articles 失效
标题翻译：用于检测和计数物品的方法和装置
公开(公告)号：US5313508A
公开(公告)日：1994-05-17
申请号：US812010
申请日：1991-12-23
申请人： John L. Ditman , David J. Holmes, III
发明人： John L. Ditman , David J. Holmes, III
IPC分类号： G06M7/00
CPC分类号： G06M7/00
摘要： A method and apparatus for counting irregularly-shaped articles. A pair of light sources are provided at a sensing plane through which articles to be counted pass. Each of the light sources emits a light beam that is at an angle to the other light beam, such as an angle of about 90.degree.. Corresponding light sensors are positioned opposite the respective light sources to receive the light signals as the articles pass through the sensing plane. A time division multiplex circuit is provided to alternately operate the light sources, and the outputs from the respective light detectors are summed to provide a unitary signal that is provided to a counter to maintain a count of the number of articles passing through the sensing plane. The system provides combined output signals that are substantially independent of the orientation of the article at the sensing plane.
摘要翻译：用于计数不规则形状制品的方法和装置。在要被计数的物品通过的感测平面处设置一对光源。每个光源发射与另一光束成一角度的光束，例如约90°的角度。相应的光传感器与各个光源相对设置，以在物品通过传感平面时接收光信号。提供时分复用电路以交替地操作光源，并且来自各个光检测器的输出相加以提供提供给计数器的统一信号，以维持通过感测平面的物品数量的计数。该系统提供组合的输出信号，其基本上独立于物体在感测平面处的取向。

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