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Sensors & Detectors News
IR Cameras Save the Ship
Jan 1, 1998 — When your million-dollar racing yacht falls from a crane, how do you evaluate unseen damage? Thomas Jones, vice president and senior engineer at Industrial Quality, has developed a creative solution to just such a problem. Using space heaters and an infrared camera from Inframetrics Inc., Jones is able to map defects in the hulls of boats to serve as a guide for repairs. Infrared imaging revealed a stair-step crack (arrow) in a yacht's foam core hull made when a broken lifting strap...
Molecular 'Antenna' Captures Light
Jan 1, 1998 — Researchers from the University of Michigan at Ann Arbor and the University of Illinois at Urbana-Champaign have developed a class of dendrimer molecules that "harvest" light. The molecules have a unique, treelike structure that enables them to...
Navy's 'Dark Horse' Could Lead to Unmanned Combat Flight
Jan 1, 1998 — Scientists at the Naval Research Laboratory have demonstrated real-time, hyperspectral detection of both airborne and ground targets. The detection system, part of the laboratory's "Dark Horse" program, employs a high-resolution imager, pointing...
Optical Gel Senses Chemicals
Jan 1, 1998 — PITTSBURGH -- By forming a functionalized gel around an array of colloidal particles, researchers have created a sensor that indicates the presence of specific chemicals by a shift in the gel's optical diffraction. Now they can use optical methods...
Researchers Take Crucial Step Toward Miniature Optical Devices
Jan 1, 1998 — Two Columbia University researchers have advanced the development of miniaturized optical devices such as microlasers and implantable medical sensors. Richard Osgood and Miguel Levy bonded a 9-µm-thick sheet of magnetic garnet, a photonic...
X-ray Detectors:
Jan 1, 1998 — Amorphous Silicon x-ray detectors are on the verge of revolutionizing medical imaging technology. Although laboratory prototypes have been available for a few years, the technology has matured to the point of mass production. Within the next year,...
Consortium to Deliver Optical Materials Standards
Dec 1, 1997 — GAITHERSBURG, Md. -- UV lithography, IR imagers and spectroscopy are just a few of the industries that could benefit from a consortium proposed by the National Institute of Standards and Technology (NIST). The Optical Properties of Materials...
New Sensor Combines CMOS and CCD
Dec 1, 1997 — DALLAS -- Engineers at Texas Instruments have combined the performance features of the charge-coupled device (CCD) and the manufacturing advantages of the complementary metal oxide semiconductor (CMOS) to produce what they call the bulk charge...
Pentagon's Laser Test Fails to Meet Objective
Dec 1, 1997 — When the Pentagon fired a mid-infrared laser at an orbiting US Air Force satellite in October, it failed to accomplish one of the experiment's main objectives: recording the impact. The Defense Department aimed the laser at an infrared camera...
Photonics Leads the Way to a Stellar Alignment
Dec 1, 1997 — Stationed on 18-m towers in New York and California, a one-of-a-kind photonic device has played a crucial role aligning eight cylindrical mirrors and the telescope assembly for the Advanced X-ray Astrophysics Facility, NASA's newest space-based...
A Photonics-First Sheds Light on Global Warming
Nov 1, 1997 — GREENBELT, Md. -- A spaceborne photonic combination could help knock some of the guesswork out of studying global warming and its relationship to aircraft. Scientists know that cirrus clouds hold IR radiation in the atmosphere, raising the Earth's...
CCD Dynamic Range: Buyers Need Comparable Specifications
Nov 1, 1997 — The dynamic range of a solid-state image sensor is one of the main characteristics if the device is used in high-end digital still photography. In video applications, the monitor or the human eye averages the noise from picture to picture. In a...
Detector Makes Unearthly Impression
Nov 1, 1997 — The highly touted Mars Pathfinder voyage in August made headlines not just because it afforded the world its first up-close images of the Red Planet, but also because it marked NASA's successful use of inexpensive, commercially available technology....
IR Beamsplitter Coatings Reduce Gas Analyzer Size, Cost
Nov 1, 1997 — A manufacturer of gas-analysis equipment had developed a product that could quickly and accurately measure up to 250 hydrocarbon gases, but it was not without its problems. It was a large, expensive instrument. The company determined that a...
Laser Sensor Controls Mold Level for Aluminum Ingots
Nov 1, 1997 — The Reynolds Metals Co. Alabama Reclamation Operations in Muscle Shoals, Ala., processes aluminum from recycled cans, scrap from canning plants and other sources of new and used aluminum as part of the company's extensive recycling network....
Navy Seeks Photonic Solutions for 2000 and Beyond
Nov 1, 1997 — WASHINGTON -- Photonics will play an important role in information, aviation, networked defenses and other key applications for national defense, according to a National Research Council report. Photonic sensor techniques will be important for...
Optical Fibers Restore Old Records
Nov 1, 1997 — LAUSANNE, Switzerland -- A group of scientists at the Federal Institute of Technology's (EPFL) metrology lab has designed an optical stylus that can play old 78-rpm records that are too fragile or damaged to be played on a traditional record player....
Optical Security:
Nov 1, 1997 — The computer, the boon of the modern age, has leveled the once stratified business world with the delicacy of a velvet-gloved fist. In this new world where information is king and transactional ease a must, risk management has become a balancing act...
Optical Ultrasound Smooths Rough Spots
Nov 1, 1997 — ORSAY, France -- Industries use ultrasound in quality assurance and materials analysis, and a new optical technique may simplify the process for many applications. Noninvasive ultrasound techniques solve problems in the aerospace and automotive...
Photonics Gives New Life to Old Tune
Nov 1, 1997 — BUENA PARK, Calif. -- The player pianos that were so popular in the early part of this century are making a comeback -- this time with a high-tech twist. Although computerized player pianos that store live performances and play them back note for...
Raytheon Acquisition Approved
Nov 1, 1997 — WASHINGTON -- US Justice Department officials have approved Raytheon Co.'s $9.5 billion acquisition of Hughes Electronics Corp. The acquisition makes the Lexington, Mass., company the nation's third-largest defense contractor. The deal went through...
Sensors' New Clothes Enhance Efficiency
Nov 1, 1997 — ALBUQUERQUE, N.M. -- A new coating for chemical sensors promises to increase their sensitivity by a factor of 500. The porous coating, developed at Sandia National Laboratories, is less than 1 µm thick, but its extremely high surface area makes...
Silica Fiber Monitors Temperature in Oil Wells
Nov 1, 1997 — The fuel industry has traditionally used submersible electric pumps to deliver oil from underground reservoirs to ground level. These devices are affected by changes in temperature and pressure, which can slow production and shorten the pump's life....
University of Vermont Incorporates Sensors in State Bridges
Nov 1, 1997 — To monitor the structural health of Vermont's aging bridges, the University of Vermont in Burlington has spearheaded a campaign to equip some bridges with an array of different optical sensors. Campaign to equip some bridges with an array of...
EG&G to Supply Detector for GE Digital X-Ray
Oct 1, 1997 — SANTA CLARA, Calif. -- An amorphous silicon detector built by EG&G in Santa Clara will form the backbone of General Electric's new digital x-ray system, which could reduce or eliminate the need for x-ray film as well as speed processing time and...
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June 2024
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