A rewritable optical disk drive is described. The drive has a large storage capacity of 8.9 Gb/spindle with a few seconds of access time. It can store data economically in a small floor space, and it can be used as a ...
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A rewritable optical disk drive is described. The drive has a large storage capacity of 8.9 Gb/spindle with a few seconds of access time. It can store data economically in a small floor space, and it can be used as a supplement or partial alternative to magnetic disk drives or tape library units. The authors discuss the drive technologies, support software, and application of this subsystem.< >
The hardware and software design and implementation of the data acquisition and processing systems of a laser wavemeter being built at NASA Langley Research Center are described. The wavemeter acquires sets of CCD/pho...
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The hardware and software design and implementation of the data acquisition and processing systems of a laser wavemeter being built at NASA Langley Research Center are described. The wavemeter acquires sets of CCD/photodiode array-image data, produced by three Fabry-Periot interferometers for a pair of laser pulses every 200 milliseconds. Each image contains 1766 pixels digitized to 12-bit resolution. The acquisition system is composed of three discrete A/D channels running at a 1-MHz conversion rate, three diode-array sensors and two 4 K*9 FIFOs. By taking advantage of the analog shift-register storage, capability of the array, two sets of data can be read in rapid succession (less than 400 microseconds is required between laser firings, but data can be acquired faster) from each array. All six images are sent in interleaved fashion to the flight recorder for postprocessing on the ground, and one selected pair of these images is processed in semi-real-time by an 80286-based single-board computer to calculate the wavelength of a pulsed multimode Alexandrite laser.< >
The authors describe potential services providing a market pull for broadband networks and recent technological advances providing a technology push. A long-term broadband network architecture is described that is bas...
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The authors describe potential services providing a market pull for broadband networks and recent technological advances providing a technology push. A long-term broadband network architecture is described that is based on a double star topology, optical transmission, and high-speed circuit and packet switching. Evolutionary paths for broadband network architectures are described whereby broadband network components and capabilities are introduced gradually, as they become available.< >
This proceedings contains 169 papers by various authors, dealing with advances in instrumentation. Major topics covered are: process control strategies, integrated plant management systems, pipeline pumps/compressor c...
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ISBN:
(纸本)1556170521
This proceedings contains 169 papers by various authors, dealing with advances in instrumentation. Major topics covered are: process control strategies, integrated plant management systems, pipeline pumps/compressor control tank gauging and storage monitoring food/pharmaceutical instrumentation control systems;control systems for power plants, pulp and paper industry, waste disposal;water production distribution automation;computer applications for water/wastewater control, electrochemical analysis;process gas chromatography/IR spectroscopy;modern control technology applications;discrete/bases control and process management;smart field devices;manufacturing automation protocol (MAP);adaptive control applications;control concepts;PC's in manufacturing;computer integrated manufacturing (CIM);programmable logic controller (PLC);database/software integration;human interfaces;fiber optic data communications;artificial intelligence;sensor technology;optical analyzer techniques;start-up management;project management;biotechnology instrumentation control;modelings/simulating manufacturing systems;batch control applications;microsoftware environments;broadband networked systems;space telemetry communications;and financing program development.
optical recording systems capable of information storage and retrieval, using a highly focused laser beam as the recording and playback source, have been developed to a point where product introduction in the immediat...
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ISBN:
(纸本)0818608021
optical recording systems capable of information storage and retrieval, using a highly focused laser beam as the recording and playback source, have been developed to a point where product introduction in the immediate time frame is highly probable. The product potentials range from low-data-rate (10-20 Mb/s) single-disk (10**1**0 to 10**1**1 b) random-access electronic office filing cabinets (augmenting existing word processing units) to high-data-rate (hundreds of Mb/s) multidisk (10**1**3-b online jukebox) random-access archival mass memories. The authors present the basic features of these optical-disk datastorage and retrieval systems with particular emphasis on the recording source and recording media.
The use of optical-fiber-based local area network (LAN) technology to meet future needs for data connectivity in the 100-Mb/s-to-4-Gb/s range is addressed. The roles of greatly increased computer power, 3-D graphics, ...
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ISBN:
(纸本)081860803X
The use of optical-fiber-based local area network (LAN) technology to meet future needs for data connectivity in the 100-Mb/s-to-4-Gb/s range is addressed. The roles of greatly increased computer power, 3-D graphics, and advances in VLSI technology are examined. The advent of FDDI, ring protocols implemented in GaAs, and integrated optical transceivers are discussed.
作者：
AnonISA
Research Triangle Park NC USA ISA Research Triangle Park NC USA
This proceedings contains 169 papers by various authors, dealing with advances in instrumentation. Major topics covered are: process control strategies, integrated plant management systems, pipeline pumps/compressor c...
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ISBN:
(纸本)1556170521
This proceedings contains 169 papers by various authors, dealing with advances in instrumentation. Major topics covered are: process control strategies, integrated plant management systems, pipeline pumps/compressor control, tank gauging and storage monitoring;food/pharmaceutical instrumentation control systems;control systems for power plants, pulp and paper industry, waste disposal;water production/distribution automation;computer applications for water/wastewater control;electrochemical analysis, process gas chromatography/IR spectroscopy;modern control technology applications;discrete/batch control and process management;smart field devices;manufacturing automation protocol (MAP);adaptive control applications;control concepts;PC's in manufacturing;computer integrated manufacturing (CIM);programmable logic controller (PLC);database/software integration;human interfaces;fiber optic data communications;artificial intelligence;reason technology;optical analyzer techniques;start-up management;project management;biotechnology instrumentation control;modeling/simulating manufacturing systems;batch control applications;microsoftware environments, broadband networked systems, space telemetry communications, training program development.
The nature of optical computing information processing is discussed. The advances in technology and the possibility of novel applications that have motivated the research are examined. Recent developments are surveyed.
ISBN:
(纸本)0936659491
The nature of optical computing information processing is discussed. The advances in technology and the possibility of novel applications that have motivated the research are examined. Recent developments are surveyed.
A hybrid storage system combining optical disks and magnetic disks is proposed and evaluated via mathematical models. Unlike most current applications of optical disk technology, which consider static databases or def...
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A unified approach to designing and selecting data-acquisition systems involving multiple sensors, data preprocessing, and real-time presentation of data products is presented. An example of a system to monitor weathe...
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A unified approach to designing and selecting data-acquisition systems involving multiple sensors, data preprocessing, and real-time presentation of data products is presented. An example of a system to monitor weather parameters, wave statistics, and spectrum characteristics in real time is presented. In particular, an analysis is given of the operating software of the data presentation and storage system which is used to collect all the sensor information and to make it available to the users.
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