For those scratching their heads over how to screen electronic components for RoHS-compliance, Soldertec ó part of the UK's Tin Technology ó suggests X-rays as a useful alternative to costly and destructive chemical testing. For well-known component suppliers, an accreditation certificate will probably be sufficient, but for suppliers with a vague pedigree, screening may be necessary.
Soldertec suggests using XRF (X-ray florescence). The procedure is quick, easy and non-destructive. The electrons in the shell of the elements present in a sample are disrupted by a low-energy X-ray, and each element responds by producing X-rays at a unique set of energies, which allows each element to be measured. The test takes as little as two minutes. As for limitations, the test is only capable of detecting materials close to the surface, and while it easily detects lead, mercury and cadmium, it cannot distinguish the specific materials PBB, PBDE or hexavalent chromium.
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.