Broadcasters who use satellites canít accept shutdowns, even when they happen only twice a year during eclipses. The Optus D3 satellite made by Orbital Sciences Corp. will use rechargeable lithium-ion batteries from Saft for power when the spacecraft is blocked from the sun during two eclipses. The two rechargeable Saft lithium ion 180W/hour average cells trim weight in half compared to alternative technologies studied by Orbital, letting the company add more critical payload equipment. It carries 32 transponders that will provide Ku-Band direct television broadcasting services to Australia and New Zealand after 2009.
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.
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.