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Sensors & Detectors News
Fibers in Spark Plug Monitor Ignition
Jun 1, 1998 — University of Texas researchers and the Ford Motor Co. are collaborating on a spark plug that employs fiber to monitor pre-ignition fuel concentration. The goal, said developer Mathew Hall, is reduced engine pollutants and improved performance by analyzing fuel/air mixing. The sensors employs two fibers placed in the plug's ceramic core and a spherical mirror at the electrode to measure IR radiation absorbed by the fuel. IR radiation from a blackbody source is coupled into IR-transmitting...
Inexpensive Infrared Sensors Rely on Microcantilever
Jun 1, 1998 — In a bid to provide an alternative to high-priced, cooled IR detectors, Sarcon Microsystems Inc. of Knoxille, Tenn., has developed a microcantilever-based sensor priced at about $4000 for a 240 3 320 array. Cooled IR detectors can cost upward of...
Infrared Thermography Unearths Hidden Graves
Jun 1, 1998 — Rarely is a suspect tried for murder in a case where no corpse has been found -- a frustrating predicament when law officials believe they know the crime has been committed and who the murderer is. Homicide investigators and search specialists often...
News Flash Photonics Assesses El Niño's Devastating Path
Jun 1, 1998 — Anyone who turned on CNN this winter remembers the images: expensive homes teetering on the edge of rocky cliffs, vulnerable to the Pacific's waves. Those familiar images were the result of El Niño -- the weather phenomenon blamed for...
Pentagon Urges Cooperation on Weapons Planning with Allies in Europe, Japan
Jun 1, 1998 — In an effort to coordinate a better defense among allied nations, the Pentagon has called for increased cooperation with Japan and Europe in the production of new weapons, including remote sensors. US Undersecretary of Defense Jacques Gansler said...
Phoenix Finds the Flames
Jun 1, 1998 — A team of engineering students from Trinity College in Hartford, Conn., took the No. 1 prize in an international contest to build a computerized robotic device that detects fire. The robot, dubbed Phoenix, employed IR sensors for edge and heat...
Researchers Unveil Metal-Free Cathodes for LEDs, Photodetectors
Jun 1, 1998 — Scientists at Princeton University in New Jersey have developed a class of metal-free cathodes for use in organic light-emitting diodes (LEDs) along with phototransistors, photodetectors, solar cells and lasers. Typically, organic LEDs employ a more...
Scientists Evaluate Statues, Cathedrals with Laser Radar
Jun 1, 1998 — A research group here has collaborated with an Italian team to evaluate the integrity of ancient monuments and historical structures using laser radar that was originally designed for atmospheric sensing. The problem of decaying artifacts is nothing...
Telescope Analysis Yields Down-to-Earth Benefits
Jun 1, 1998 — Astronomers and astrophysicists studying the nature of celestial objects require clear, sharp images collected by astronomical telescopes. To accomplish this, the engineers who design and build these instruments must ensure that light from the...
Terrestrial IR Imaging Benefits from Aerospace Programs
Jun 1, 1998 — Infrared imaging systems are exploding into virtually every corner of the industrial workplace. Improved resolution, thermal sensitivity, ruggedness and portability of imager components have expanded the use of imaging systems, and a good many of...
Tiny Bubble Is Key to Optical Measurement
Jun 1, 1998 — Engineers at water treatment plants and other facilities that monitor biological and chemical pollutants in water are turning to optical techniques such as spectroscopy. These techniques are not without their drawbacks. Transparent cells holding the...
Transistors Work at Low Temp
Jun 1, 1998 — Engineers at Germanium Power Devices are refining a transistor that works at liquid helium temperature. The germanium field-effect transistor was pioneered by Texas Instruments but never put into extensive production. The Massachusetts company,...
Detector Choices:
May 1, 1998 — Whether they need to image faraway stars, microscopic organisms or bottles on an assembly line, users of imaging systems face many choices: What type of light will work best? How does color play a role? Where should I position the camera? In...
Earth Sensor Keeps Satellite on Track
May 1, 1998 — Researchers from 15 countries have gained new insight into ozone, thanks to the continuation of a series of joint missions by NASA and Germany's space agency DARA. The German-built Crista-Spas II was sent on an 11-day mission in August to study...
Filter Helps Predict Solar Flares
May 1, 1998 — Although it has been making tunable etalons since 1978, Queensgate Instruments Ltd. has outdone itself by developing a 150-mm etalon as part of a system that will enhance the US Air Force's ability to predict solar flares. In helping the Air...
Imaging Diagnoses Complex Chips
May 1, 1998 — Today's typical microprocessor is a complex creature. The continuing trend toward faster, smaller and denser CMOS circuits does not help engineers measure a chip's signals for possible defects. Traditional inspection methods, which involve probing...
Laser Seam Finder Outperforms Mechanical Version
May 1, 1998 — Some time ago, Weibull Workshops, a Swedish manufacturer of chassis for heavy vehicles such as trucks and buses, replaced its mechanical arc welder systems with a Motoman K10 arc welding robot, but the company continued to use a mechanical means to...
Names in the News
May 1, 1998 — BrainTech Inc. received a contract to build and install a print-quality inspection system to improve and standardize the ink jet printer assembly process for Epson Portland Inc. Epson has the option to buy an additional 11 units to automate its...
National Science Foundation Tests Turbulence Sensor
May 1, 1998 — As most frequent fliers know, turbulence can be both a nuisance and a danger. Scientists aboard a research aircraft owned by the National Science Foundation tested a new detector that could provide a first defense against these dangerous patches of...
NIST and Astralux Join to Develop Gallium Nitride Films
May 1, 1998 — Astralux Inc. in Boulder, Colo., and the National Institute of Standards and Technology have teamed up to process gallium nitride films on silicon carbide and sapphire substrates for use in industrial devices. Gallium nitride can be made into...
Partnership to Develop CMOS Sensors for Digital Imaging
May 1, 1998 — The Institute for Microelectronics in Stuttgart, Germany, and G-Link Technology, a Santa Clara, Calif.-based chip manufacturer, plan to work together on commercializing high-dynamic-range CMOS image sensor technology. The partnership leverages...
Robotics, Machine Vision Resources Merge
May 1, 1998 — In an effort to provide a resource for potential buyers of machine vision, robotics and related automation technologies, the Robotic Industries Association and the Automated Imaging Association in Ann Arbor, Mich., have banded together to form an...
Fiber Optic Sensors Sniff Out Chemicals
Apr 1, 1998 — Fiber Optic Sensors Sniff Out Chemicals
Lidar Helps Unravel Environmental Mysteries
Apr 1, 1998 — From coastal waterways to Alpine summits, light detection and ranging technology demonstrates how photonics helps to unravel the mysteries of complex environmental processes while sharpening our vision of seas and skies. In Sweden, for example,...
Market Watchers Anticipate Growth in IR Imaging
Apr 1, 1998 — Increased demand for IR imaging focal plane array systems and sensors signal continued steady growth in the IR market, despite growing price and consolidation pressures on companies. That is the prediction from market watchdog Frost & Sullivan,...
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