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Detection


— Science

Eureka! X-rays detect gold faster and more accurately

By - August 13, 2013 2 Pictures
Every year, Australian mining companies discard hundred of millions of dollars worth of gold. They're not doing it on purpose, it’s just that the standard industry technique of scanning mineral samples isn’t sensitive enough to detect small traces of the precious metal. Australia’s Commonwealth Scientific and Industrial Research Organisation (CSIRO) and Canadian company Mevex have tested a new technique using powerful X-rays that can detect these small trace amounts quickly and accurately. Read More
— Automotive Feature

Gizmag takes a ride in Volvo's most autonomous car yet

Gizmag took a trip to Gothenburg to see six pieces of autonomous driving technology demonstrated by Volvo on Tuesday. A self-parking car and a car that drives itself (albeit under certain conditions) were among the tech on display, rounded out by new detection systems for animals, pedestrians at night, road edges and barriers, as well as a behind-the-scenes car-to-car communication system. All are positioned as pieces of safety technology, Volvo's goal being that no one will die or be seriously injured in a new Volvo come 2020. But it's also clear that Volvo is deadly serious about full autonomy, and given that some of the tech Gizmag saw will be on the market next year, a driverless future feels closer today than it did when the week began. But it's a future that will take some getting used to … Read More
— Space

Listening for leaks aboard the International Space Station with ultrasonics

By - July 3, 2013 3 Pictures
In space, no one can hear you scream, but you can hear an air leak. In old science fiction movies, air leaks on spaceships and stations reveal themselves as convenient holes to slap a patch on, but on the complex International Space Station (ISS), it isn't that simple. NASA is working on a new system for detecting the ultrasonic noise of an air leak quickly before it turns into a dangerous race against time. Read More
— Wearable Electronics

SpiderSense suit delivers superhuman perception

By - March 11, 2013 9 Pictures
In the Spider-Man comics and movies, the famous hero's "Spider Sense" warns him of incoming danger, which proves to be just as important a superpower as slinging webs and climbing walls. Now a group of researchers at the University of Illinois in Chicago may have found a way to replicate such superhuman perception that doesn't involve any radioactive spiders. Using a collection of sensors placed all over the body, the group has designed a "SpiderSense" suit that detects objects in the environment and warns the wearer when anything gets too close. Read More
— Military

Quantum-enhanced radar can't be fooled by electronic detection countermeasures

By - January 10, 2013 2 Pictures
The military use of radar has always had a yin-yang dynamic – as new forms of radar are developed, so too are new ways to jam them. A team of physicists at the University of Rochester has discovered how to defeat the latest active radar jamming methods by taking advantage of the quantum properties of photons. While this new anti-jamming technology cannot remove the false information, it provides an immediate alert that false information is being received. Read More
— Marine

CSIRO sensor detects explosives at sea

By - November 15, 2012 4 Pictures
Clearing explosives is a major operation and removing the deadly residue of over a century of warfare is a never ending task. The problem is that before you can remove explosives you have to find them. That isn’t always easy – especially underwater, so Australia’s Commonwealth Scientific and Industrial Research Organisation (CSIRO) has developed a new sensor that uses high-temperature planar gradiometers to seek out explosives in the sea. Read More
— Science

Regular green laser pointer used to detect hazardous chemicals

By - October 11, 2012 2 Pictures
Hand-held laser pointers can now be used for something else besides doing presentations, projecting images of microorganisms, and disabling satellites. Next week, a group of scientists from Israel’s Ben-Gurion University of the Negev will be presenting a compact device that they created, which uses a garden-variety green laser pointer to detect dangerous substances such as explosives. Read More
— Science

Nanofibrous film detects vapors from buried landmines and explosives

By - August 3, 2012 2 Pictures
Engineers at the University of Connecticut (UConn) have developed a fluorescent nanofibrous film capable of detecting ultra-trace levels of explosive vapors from landmines and other buried explosive devices. In the presence of explosive molecules, the film’s fluorescence is suppressed when exposed to ultraviolet (UV) light. In this way, the lightweight film, which is similar to paper, could be rolled out over suspect areas to mark the location of explosive devices. Read More
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