Control system for coupling redundant logic channels

Details Control system for coupling redundant logic channels Control system for coupling redundant logic channels

1981-09-04

1983-09-06

Ng, Jin F.

Induced nuclear reactions: processes, systems, and elements

Testing, sensing, measuring, or detecting a fission reactor...

376259, 455616, 340508, G21C 700

Patent

active

044029039

ABSTRACT:
A control system for coupling redundant logic channels while maintaining electrical and physical isolation between channels. The separate redundant logic channels each include an electro-optic modulator, which are connected by fiber optic links, with system condition sensors generating signals which are applied to the electro-optic modulators to control the light transmission characteristics of the electro-optic medium in response to a predetermined system condition. A light source is connected by input fiber optics to the logic channels, and output fiber optics connect the logic channels to a light detector.

REFERENCES:
patent: 3027806 (1962-04-01), Koelsch, Jr.
patent: 3069973 (1962-12-01), Ames
patent: 3531179 (1970-09-01), Jaffe et al.
patent: 3679974 (1972-07-01), Mollenbeck
patent: 3888772 (1975-06-01), Neuner
patent: 4002896 (1977-01-01), Davies et al.
patent: 4145607 (1979-03-01), Bates

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