Battery technology remains a major challenge for developers of electric and hybrid-electric vehicles. With a three- to five-year life span, every hour of battery life counts in determining vehicle cost-effectiveness. Moreover, concentrated temperature gradients, indicating heat buildup within a battery module or across a battery pack, can shorten battery life by causing accelerated corrosion, chemical imbalances, and thermal strains on electrode materials. To address these problems, engineers at the Southwest Research Institute (SwRI) Vehicle Systems Research Department use thermal imaging to better understand how the batteries behave under certain conditions, such as experimental fast-charging completed within 20 minutes or at extreme temperatures. The imaging can rapidly and accurately identify energy-wasting hot spots, unpredictable gradients, and transient behaviors. Without thermal imaging, engineers must use thermocouples placed at a discrete number of sites on the batteries to obtain temperature distributions. Not only is this costly, but thermocouples interfere with the taking of sensitive measurements. FAX Elizabeth Douglas at (210) 522-3547.
Festo's BionicKangaroo combines pneumatic and electrical drive technology, plus very precise controls and condition monitoring. Like a real kangaroo, the BionicKangaroo robot harvests the kinetic energy of each takeoff and immediately uses it to power the next jump.
Design News and Digi-Key presents: Creating & Testing Your First RTOS Application Using MQX, a crash course that will look at defining a project, selecting a target processor, blocking code, defining tasks, completing code, and debugging.
These are the toys that inspired budding engineers to try out sublime designs, create miniature structures, and experiment with bizarre contraptions using sets that could be torn down and reconstructed over and over.
PowerStream is deploying the microgrid at its headquarters to demonstrate how people can generate and distribute their own energy and make their homes and businesses more sustainable through renewables.
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.