Robert M. Oates

A Microprocessor Based Automatic Flux Mapping System for Pressurized Water Reactors

A microprocessor controlled Flux Mapping System has been designed which permits automatic three-dimensional flux distribution measurements of a reactor core. The Flux Mapping System consists of a Detector Drive System which provides the mechanical means for routing movable detectors into and out of the core, and a Flux Mapping Console which allows for complete and automatic control of drive system operation, data gathering and system output. Both the Flux Mapping Console and the detector Drive System, their features and construction, are described. The console design is implemented using multiple microprocessors with a redundant internal architecture and a modular bus oriented construction that uses standard printed circuit boards. Overator interface is via an interactive CRT and keyboard. Low level analog signals from the detectors are digitized; scanning is synchronized with detector position; and automatic ranging is utilized for maximum resolution. Multiple data links allow data to flow from memory to printers, floppy discs, and a plant process computer. The microprocessors perform self-checking and system diagnostics for maximum system availability.

Fiber optic broadband networks for the Manufacturing Automation Protocol

An approach that permits the networking of broadband data over optical fiber is presented. This local area network (LAN) is a broadband network that allows the use of multiple carrier frequencies and thus multiple services. For example, multiple network formats, such as the Manufacturing Automation Protocol (MAP), broadband Ethernet, and the PC network, can coexist on the same optical fiber in addition to other broadband services such as video.<<ETX>>

Fiber Optics For Broadband Networking Applications

Computers have revolutionized the factory floor as well as the office environment. As a result, there has been a dramatic increase in the amount of information constantly exchanged between shop-floor computers that control and monitor plant equipment and among myriad office workers with individual desk-top computers. This widespread use of distributed processing has naturally led to the need for reliable data communication links. A unique approach has been developed which permits the networking of broadband data over optical fiber. This Local Area Network is a broadband network which utilizes analog techniques for communications. Analog methods allow for the use of multiple carrier frequencies and thus multiple services. For example, multiple networks such as the Manufacturing Automation Protocol, Broadband Ethernet, and the PC Network can coexist on the same optical fiber in addition to other broadband services such as video.

Fiber Optic Broadband LAN For The Manufacturing Automation Protocol

Distributed computer processing has led to the need for data communications over reliable links. This paper discusses the use of fiber optics in Manufacturing Automation Protocol (MAP) factory networks -- its potential and limitations. A fiber optic MAP system is described which provides completely compatible fiber optic interconnections for all 10 Mb/s broadband MAP equipment. The system uses innovative techniques to support broadband MAP as well as other broadband services such as video.