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Accent on Applications News
Laser Analyzer Delivers 'Hands-On' Automation
Mar 1, 2004 — Although the general slump of the telecommunications sector continues, many companies in the fiber optics industry require solutions for automating their processes as insurance for their survival. Current production volumes do not justify the expense of fully automated systems, and the unstable production requirements of today's market further complicate the matter. The laser diode array analyzer is a semiautomated workstation for the testing of arrays of vertical-cavity surface-emitting...
Raman Spectrometer Probes the Deep
Mar 1, 2004 — As NASA rovers equipped with high-tech instruments again investigate the surface of Mars, it can be difficult to appreciate that places much closer to home have resisted such in situ analyses of rocks and minerals. But the deep-sea floor remains as...
BMW Adopts Scanning Method for Spot Welding
Jan 1, 2004 — Changing the tooling and equipment of a factory requires an investment that few manufacturers are willing to consider -- unless the benefits of the retrofit are so significant that the eventual reward far outweighs the immediate expense....
Mars Spectrometer Employs Hollow Retroreflectors
Jan 1, 2004 — The European Space Agency's Mars Express, which was scheduled to reach Mars on Christmas Day, is expected to collect the most detailed measurements of that planet to date. Besides solving the mystery of why Mars appears to lack the ferric oxides...
Spectrophotometer Observes Radiation from Rocks
Jan 1, 2004 — A few years ago, Friedemann Freund, a professor at San Jose State University in California, embarked on the study of rock deformation. When you squeeze a rock very hard, asked the physicist, what are the physical processes that take place? The data...
High-Power, Short-Wave LED Purifies Air
Dec 1, 2003 — Ultraviolet radiation has numerous applications in the decontamination of a variety of materials. It has been used effectively for groundwater filtration, sterilizing of foodstuffs and cleaning of semiconductors. Ultraviolet decontamination systems...
High-Speed System Offers Optical Measurement for LEDs
Dec 1, 2003 — With any new product, it is critical to establish a sense of trust and reliability with the consumer. A few minor glitches in the initial rollout could doom an emerging technology, no matter how promising its prospects, which is why test and...
IR Imaging Exposes Equine Ailments
Dec 1, 2003 — Save for the famous Mr. Ed, horses can't tell a veterinarian what's wrong with them. In fact, a horse not only is unable to communicate its symptoms, but also makes a concerted effort to hide them. Such suppression makes it particularly difficult...
Light Kit Is Lower-Cost Crime Fighter
Dec 1, 2003 — It has been a little more than a hundred years since Scotland Yard bagged its first criminal by using fingerprints as evidence. The technology for lifting a print back then was elementary, my dear Watson. It involved dusting it with charcoal and...
Quantum Cascade Laser Improves Smoke Analysis
Dec 1, 2003 — Understanding the exact chemistry of smoke could guide the development of tobacco products. Mid-infrared laser spectrosco-py is a well-established analytical method that can provide accurate measurements of gaseous constituents in cigarette smoke....
Sandia Demonstrates High-Power UV LEDs
Dec 1, 2003 — In support of the Defense Advanced Research Projects Agency’s Semiconductor Ultraviolet Optical Sources program, researchers at Sandia National Laboratories in Albuquerque, N.M., have developed high-power AlGaInN-based LEDs that emit at...
Beamsplitter Coating Enables Virtual Display in Automobiles
Nov 1, 2003 — The modern automobile control console has evolved from "dummy lights" to an integrated series of high-tech displays. A new example of such an advanced display is the in-dash navigation system in the 2004 DaimlerChrysler Pacifica, which enables the...
Displays Doped with Lanthanides
Nov 1, 2003 — Emissive display technologies are benefiting from the development of new materials, notably organic LEDs. These electroluminescent devices do not require a front or back light, and they offer a wider angle of view than liquid crystal displays....
Hemispherical Display Uses Single Lens and Digital Projector
Nov 1, 2003 — Delivering realistic graphical information to the retina has been a challenge for information display technology. Elumens Corp. of Durham, N.C., hopes that its immersive hemispherical digital projection system addresses this challenge and offers a...
Laser Profilometry Inspects Shuttle Thrusters
Nov 1, 2003 — After a space shuttle mission, technicians thoroughly inspect the vehicle for wear and tear, looking for the minute chips and hairline fractures that can result from supersonic impacts or from the plastic expansion and contraction of materials in...
Grating Shrinks Endoscope
Oct 1, 2003 — Endoscopes provide high-resolution color images in real time for a range of medical applications, but these instruments are too large for procedures such as fetoscopy and pediatric surgery. A possible solution is to employ a single optical fiber...
Optical Stimuli Control Magnetism in Novel Materials
Oct 1, 2003 — In 1886, Heinrich Hertz observed that utraviolet light, when directed at a conduction plate, caused an increase in electrical charge. Einstein later articulated this as the photoelectric effect and explained how light waves or photons exist in...
Photonics Detects Wildfires
Oct 1, 2003 — The fire season of 2002 was the second worst in 50 years, burning more than 7 million acres and engulfing Arizona, Colorado and Oregon. The devastation was a wake-up call to authorities charged with protecting the nation's parks and wilderness...
Colored Lights Reveal Hidden Images
Sep 1, 2003 — Color scientists at Xerox Corp.'s Wilson Center for Research and Technology in Webster, N.Y., have come up with a disappearing act that features high-quality color photographs. Under illumination with one color of light, a print reveals one detailed...
Laser-Induced Incandescence Measures Soot in Jet Exhaust
Sep 1, 2003 — When monitoring the performance of jet engines, aerospace engineers typically are concerned with intake phenomena, such as how wind velocity, rain and shock waves affect the turbine at subsonic to supersonic speeds. But a growing awareness of the...
Sensors and New Materials Build Smart Bridges
Sep 1, 2003 — Armies of workers laid 650,000 miles of road and erected 75,000 bridges from 1935 through 1939 under the Works Progress Administration. The program was an unqualified success, and these structures remain a large part of the highway system in the US....
Digital Cameras Help Solve Mystery of Leaking Aqueduct
Aug 1, 2003 — When New York's water supply began turning up in lakes and pools around Ulster and Orange counties, it was assumed that the 45-mile, 900-ft-deep upstate water tunnel had sprung a leak. But Water Department engineers didn't know how to pinpoint the...
Laser Ablation Enhances Uranium Dating
Aug 1, 2003 — To gain a better understanding of the history of the Earth, scientists have learned to peel back the layers of time, observing the growth rings of once-living organisms or the layers of sediment in a road cut. Another such dating technique uses mass...
NIR Reflectance Spectroscopy Analyzes Grain
Aug 1, 2003 — Advances in genetics and biotechnology have made it possible to manipulate the chemical constituents of poultry and swine feed to increase the value of a unit of grain. As a result, the traditional view of grain as a static commodity is giving way...
Optical Brighteners Recycle Old Colors
Aug 1, 2003 — As plastics age, they become oxidized and yellowed through photoexposure. In consumer products, this can be a problem because containers and packaging that have lost their luster can be a disincentive to purchasing an item. This is a major concern...
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June 2024
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