ScienceDaily: Consumer Electronics News |
- Terahertz imaging on the cheap: Fewer sensors required for high-resolution imaging systems
- Nanoengineers develop basis for electronics that stretch at the molecular level
- No danger from magnetic fields in electric cars, experts say
| Terahertz imaging on the cheap: Fewer sensors required for high-resolution imaging systems Posted: 05 May 2014 08:25 AM PDT Terahertz imaging, which is already familiar from airport security checkpoints, has a number of other promising applications -- from explosives detection to collision avoidance in cars. Like sonar or radar, terahertz imaging produces an image by comparing measurements across an array of sensors. Those arrays have to be very dense, since the distance between sensors is proportional to wavelength. Scientists have now developed a technique that could reduce the number of sensors required for terahertz or millimeter-wave imaging by a factor of 10, or even 100, making them more practical. |
| Nanoengineers develop basis for electronics that stretch at the molecular level Posted: 05 May 2014 06:50 AM PDT Nanoengineers are asking what might be possible if semiconductor materials were flexible and stretchable without sacrificing electronic function? Today's flexible electronics are already enabling a new generation of wearable sensors and other mobile electronic devices. But these flexible electronics, in which very thin semiconductor materials are applied to a thin, flexible substrate in wavy patterns and then applied to a deformable surface such as skin or fabric, are still built around hard composite materials that limit their elasticity. |
| No danger from magnetic fields in electric cars, experts say Posted: 05 May 2014 06:38 AM PDT Many people are concerned that electric cars produce dangerous magnetic fields. New research shows that this is not the case. Researchers from seven countries have concluded that we can feel safe both in electric-powered cars and in those powered by hydrogen, petrol and diesel. None of them exposes passengers to higher electromagnetic fields than those recommended in international standards. In fact, field intensity is well below the recommended value, experts say. |
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