Researchers at the Georgia Institute of Technology have developed a new type of magnetically-actuated microrelay they say can be batch-produced using established micromachining techniques. The developer predicts that the devices could have applications in automotive electronics, test equipment, and other areas where low actuation voltages are needed. The devices, smaller than a dime, operate at less than 5V, which would allow them to be driven by digital logic circuits, making them attractive for use in equipment for which higher voltages could be undesirable. The patent-pending devices' contact resistance of less than 100 milliohms and their ability to switch currents of up to 1.2A set a new record for microrelays, says William P. Taylor, their developer. He adds that the devices offer cost advantages over traditional relays, "because they can be produced in groups of a hundred or more at a time." The Georgia Tech microrelays have been tested through more than 850,000 operating cycles without failure. E-mail email@example.com.
Major global metropolitan areas are implementing a vast number of technology, energy, transportation, and Internet projects to make the metropolis a friendlier, greener, safer, and more sustainable place to be.
Here’s a look at robots depicted in movies and on TV during the 1950s and 1960s. We tried to collect the classics here, omitting the scores of forgettable B movies such as Santa Claus Conquers the Martians and Dr. Goldfoot and the Bikini Machine. Stay tuned for slideshows of robot stars from later decades.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.