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    • 1. 发明授权
    • Method and apparatus for detecting foreign matters in liquids
    • 用于检测液体中异物的方法和装置
    • US4274745A
    • 1981-06-23
    • US900350
    • 1978-04-27
    • Toshio TakahashiRyosaku Tagaya
    • Toshio TakahashiRyosaku Tagaya
    • G01N21/90G01N33/00G01N21/24
    • G01N21/9027G01N2033/0081
    • Method and apparatus for detecting foreign matters in liquids comprising the steps of turning at a high speed a transparent container filled with a liquid, bringing the container to a standstill quickly permitting suspended foreign matters to swirl with the liquid, illuminating the liquid and foreign matters causing the transmitted light to be received by a light detector consisting of a multiplicity of small light sensitive elements measuring 0.01 mm.sup.2 -1 mm.sup.2 and capable of providing output signals proportional to the projected area of foreign matters, and rejecting defective containers that give output signals exceeding the reference value. The small light sensitive elements are connected to the detection visual field selector circuits so that the detection visual field can be changed by selecting a proper number of the small light sensitive elements to be employed according to the size of object to be detected.
    • 用于检测液体中的异物的方法和装置包括以下步骤:高速转动填充有液体的透明容器,使容器快速停止,使悬浮的异物与液体一起旋转,照亮液体和引起异物 透射光将被由多个尺寸为0.01mm2-1mm2的小的光敏元件组成的光检测器接收,并且能够提供与异物的投影面积成比例的输出信号,并且拒绝产生超出该值的输出信号的有缺陷的容器 参考值。 小的感光元件连接到检测视场选择器电路,使得可以根据要检测的对象的大小选择适当数量的要使用的小的光敏元件来改变检测视野。
    • 2. 发明授权
    • Method and apparatus for detecting and screening foreign matters
    • 检测和筛选异物的方法和装置
    • US4158625A
    • 1979-06-19
    • US820308
    • 1977-07-29
    • Toshio TakahashiRyosaku Tagaya
    • Toshio TakahashiRyosaku Tagaya
    • G01N21/88B07C5/34B65B57/00G01N21/90G01N21/93G01N33/00B07C5/342
    • G01N21/9027B07C5/3408G01N21/8851G01N21/9036G01N2033/0081
    • The characteristics of detecting and screening foreign matters that might be present in samples (e.g., ampoules containing a medical fluid) are improved by subjecting samples to more than two foreign matter detectors consecutively, applying the output signals from the detectors to paired comparators in which the comparing reference voltage is set to a high level and a low level, with the detectors being connected to the signal delay circuits that adjust with one another the output time of signals from the comparators, applying all the output signals from the comparators of the high level to an AND circuit and applying all the output signals from the comparators of low level to an OR circuit and further applying the output signals from the AND circuit and the output signals from the OR circuit to another OR circuit.
    • 检测和筛选可能存在于样品中的异物(例如,含有医用流体的安瓿)的特征通过连续检测多于两个异物检测器的样品而得到改善,将来自检测器的输出信号应用于配对比较器,其中 比较参考电压被设置为高电平和低电平,其中检测器连接到信号延迟电路,信号延迟电路相互调整来自比较器的信号的输出时间,施加来自高电平的比较器的所有输出信号 并且将来自低电平比较器的所有输出信号施加到“或”电路,并且进一步将来自“与”电路的输出信号和来自“或”电路的输出信号施加到另一“或”电路。