公开(公告)号：US4749853A

公开(公告)日：1988-06-07

申请号：US5677

申请日：1987-01-20

Applicant: Ehsan Salim

Inventor： Ehsan Salim

IPC: F16P3/14 ,  G01J1/06 ,  G01M11/00 ,  G01V8/20 ,  G08B13/183 ,  G08B29/04 ,  G01V9/04

CPC classification number: G08B29/04 ,  F16P3/14 ,  F16P3/144 ,  G01V8/20 ,  G08B13/183 ,  H03K2217/94114

Abstract: An evaluation circuit for use with electronic system which utilizes a plurality of individual transmitters of light, a like plurality of individual receivers of light, and a like plurality of light conducting paths. Each transmitter is connected to its corresponding receiver by a corresponding path so that the light emitted by any transmitter can only impinge upon the corresponding receiver. The light emitted is in the form of pulses. The transmitters are selectively actuated and deactuated in selected format by a multiplexer. The corresponding receivers are synchronized to respond in the same format by a demultiplexer whereby when the system functions properly each receiver will receive and respond only to the light pulse emitted by the corresponding transmitter. In the circuit, a measuring operation is initiated in which each transmitter-receiver pair is individually actuated in a selected sequence. A first channel produces a first signal when each receiver has properly received a light pulse emitted by its corresponding transmitter, the first signal suddenly changing value whenever a receiver fails to receive a light pulse emitted by its corresponding transmitter.

Abstract translation: 一种用于电子系统的评估电路，其利用光的多个单独的发射器，类似的多个光的单个接收器以及类似的多个导光路径。 每个发射机通过相应的路径连接到其对应的接收机，使得任何发射机发射的光只能撞击对应的接收机。 发出的光是脉冲的形式。 发射机通过多路复用器以选定的格式选择性地启动和去激活。 相应的接收机被同步以通过解复用器以相同的格式进行响应，由此当系统正常工作时，每个接收机将接收并响应由对应的发射机发射的光脉冲。 在该电路中，开始测量操作，其中每个发射器 - 接收器对以选定的顺序单独致动。 当每个接收机正确地接收到由其对应的发射机发射的光脉冲时，第一信道产生第一信号，每当接收机不能接收到由其对应的发射机发射的光脉冲时，第一信号突然变化的值。