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Proceedings Paper

Control And Monitor System Using Fiber Optics In A Blast And Thermal Environment
Author(s): Kenneth R. Sites
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Paper Abstract

A control and monitor system has been developed for a nuclear Thermal Radiation Simulator (TRS) which uses a unique fiber optic data link. The system will operate up to nine TRS arrays that are positioned at various remote locations. Each array is operated by a local microprocessor that performs control and monitor functions. Master system control and monitor functions are performed by a central minicomputer. Communications between the local microprocessors and the central minicomputer are performed via three 2200-meter fiber optic data links. Each data link will operate up to three TRS arrays. A newly developed optical coupler supports simultaneous duplex data transmission on a single fiber. The fiber data link operates at 150 kilobits per second, with the capability of operating in excess of 2 megabits per second, at a bit error rate of < 10-9. The system uses low cost step index fiber, LED transmitters and PIN diode receivers in addition to the optical couplers. The coupler boasts parameters of < 2 dB receive input loss, < 1.5 dB transmitter output loss, and transmitter-to-receiver isolation of 40 dB when operated at 820 nanometers.

Paper Details

Date Published: 22 January 1982
PDF: 5 pages
Proc. SPIE 0296, Fiber Optics in Adverse Environments I, (22 January 1982); doi: 10.1117/12.932458
Show Author Affiliations
Kenneth R. Sites, Science Applications, Incorporated (United States)

Published in SPIE Proceedings Vol. 0296:
Fiber Optics in Adverse Environments I
Peter B. Lyons, Editor(s)

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