You've probably heard of or even owned a computer that automatically turns off its hard drive when it senses shock or heavy vibrations. That is an example of sensitive human-machine intimacy. Another example I like is tilting the iPhone to use it as the driving bar for my racing games. Well, that nifty human-to-computer interaction is about to go to whole new level.
HP announced Thursday a new inertial-sensing technology that enables the development of digital micro-electro-mechanical systems (MEMS) accelerometers that are up to 1,000 times more sensitive than those in high-volume products currently available.
A MEMS accelerometer is a sensor that can be used to measure vibration, shock, or change in velocity. When implemented, this allows the device to "feel" the environment it is in.
According to HP, the new sensing technology--the result of HP's 25 years of nano-sensing research--includes multiple detectors as part of a complete sensor network and therefore is capable of real-time data collection, management evaluation, and analysis. This information enables users to make better, faster decisions, and take subsequent action to improve safety, security, and sustainability.
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(Credit:
University of Missouri)
Scientists at the University of Missouri are developing a small nuclear battery that they say can hold a million times more charge than standard batteries.
The radioisotope battery, being developed by Jae Kwon of the Department of Electrical and Computer Engineering and other researchers, is the size and thickness of a penny.
That makes it smaller than nuclear batteries used in space and military applications. Kwon says it might shrink to less than the thickness of a human hair if the right materials are used.
The battery is designed to drive micro/nanoelectromechanical systems (M/NEMS). Such devices include labs on a chip, and biological and chemical sensors.
The nuclear battery produces power from charged particles released by radioactive decay. It also uses a liquid semiconductor material, rather than a solid one, to minimize damage to the battery.
Kwon said the technology is safe. "Nuclear power sources have already been safely powering a variety of devices, such as pacemakers, space satellites and underwater systems," he noted.
The team has applied for a provisional patent on the battery.
Electronic paper is stacking up to be a high-growth market, according to a new report.
Sales of e-paper displays are projected to soar from $431 million this year to $9.6 billion in 2018, market researcher DisplaySearch said Wednesday.
The number of units sold is forecast to grow 22 million this year to 1.8 billion in 2018.
E-books are currently the main use and sales driver for e-paper. Most e-book readers, such as the Amazon Kindle and Sony Reader, use the electrophoretic display technology from E Ink. A few e-readers, such as Fujitsu's Flepia, use a different technology called cholesteric LCD. Fujitsu's device offers a color display but is more expensive than the Kindle or Sony Reader.
"E-paper displays are taking off with consumers due to their low power consumption and ease of reading, especially in sunlight," said Jennifer Colegrove, director of display technologies at DisplaySearch. "In addition, e-paper displays are 'green' because they reduce paper consumption."
The number of e-book readers on the market has risen steadily, starting with one model in 2003, three in 2006, five in 2007, and around 20 this year, notes the report.
Despite the visual appeal of Fujitu's color Flepia e-book reader, DisplaySearch asserts that the high price and technical challenges of color e-books will limit their sales volume until 2011. The more popular electrophoretic display technology is likely to continue to lead the market and generate sales of $5.8 billion in 2018.
But other display technologies are poised for growth, the report said. Electrochromic displays, most commonly used in windows and other glass products, will target the market for smart labels and card displays. By 2013, electrochromic displays will be the leading technology for e-paper displays, DisplaySearch is forecasting.
Another competing technology called MEMS (micro-electro mechanical system) is expected to shift its market from cell phone displays to color and medium-sized e-books over the next few years.
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