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    • 75. 发明授权
    • Monitoring, counting and safety apparatus
    • 监控,计数和安全设备
    • US3925681A
    • 1975-12-09
    • US45022174
    • 1974-03-11
    • GRUDELBACH HANS DIETER
    • GRUDELBACH HANS-DIETER
    • G01S11/00F16P3/14G01V8/20G07C3/00G01D21/04
    • F16P3/144G07C3/005Y10T307/773
    • This invention relates to apparatus for surveillance, counting and guard purposes of the kind in which emitters emit electrical beams or radiation or jets of water to appropriately responsive reception means, one receiver being associated with one emitter, the arrangement being such that when a body representing a triggering occurrence enters the beam path between an emitter and a receiver, and thus interrupts at least one of said beam paths, it causes an apparatus for interpreting the triggering occurence to respond via the receiver or receivers thus affected, so that the interpreting apparatus will then halt an operation taking place in a machine, set off an alarm or cause the triggering occurrence to be counted. According to the invention, one receiver and one emitter are connected together in each case to form an independent channel: all the similarly formed channels constitute a ring circuit such that, as a result of the beam paths being suitably arranged, the receiver in each channel responds only to radiation foreign to its channel coming from the emitter of a channel adjacent to it in the ring circuit in the form of the latter''s own radiation: the circuitry for each channel is such that its emitter is caused to produce radiation for as long a time as its receiver is not receiving foreign radiation but on the other hand emission is interrupted for the time that the receiver receives foreign radiation: an interpreting apparatus is connected to the ring of channels which, when at least one of the beam paths is interrupted by a triggering occurrence, responds by interpreting a transition on the part of the circuit from its dynamic operational state to a static state.
    • 本发明涉及用于监视,计数和保护目的的装置,其中发射器将电子束或辐射或射流喷射到适当响应的接收装置,一个接收器与一个发射器相关联,该装置使得当代表 触发事件进入发射器和接收器之间的光束路径,并且因此中断至少一个所述光束路径,则其引起用于解释触发发生的装置经由受影响的接收器或接收器进行响应,使得解释装置将 然后停止在机器中进行的操作,发出报警或引起触发事件计数。 根据本发明,在每种情况下,一个接收器和一个发射器连接在一起以形成独立的通道:所有类似形成的通道构成环形电路,使得由于光束路径被适当地布置,每个通道中的接收器 仅响应来自与其在环路电路中与其相邻的通道的发射极的信道以其后者自己的辐射的形式对其信道异常的辐射:用于每个信道的电路使得其发射极产生辐射长达一个 因为接收机没有接收到外部辐射,而另一方面发射在接收机接收到外部辐射的时间被中断:解释装置连接到信道环,当至少一个光束路径被 触发事件通过将电路部分的转换从其动态操作状态解释为静态来进行响应。