ELECTRONICS: An explosive atmosphere may occur in many heavy-duty industries where encoders are used to provide position and speed feedback. To combat that, encoders that conform to ATEX directives should be used to increase safety in potentially explosive atmospheres. Leine & Linde’s product range of encoders in its 300, 500, 600 and 800 series conform to ATEX, specifically for lower Zones (2/22), and are now available in North America for use in these environments. ATEX is an acronym for ATmospèhere EXplosible (French, “explosive atmosphere”). It is a commonly recognized European Union directive that sets out a detailed code for products used in hazardous locations. The ATEX directive states that the construction must protect against penetration of dust in hazardous quantities and guarantee that the surface temperature is below the ignition temperature of dust/air mixtures and below the smoldering temperatures of dust deposits. The construction must minimize the occurrence of arcs, sparks and hot surfaces, which in normal operation might increase the risk of explosion.
The engineers and inventors of the post WWII period turned their attention to advancements in electronics, communication, and entertainment. Breakthrough inventions range from LEGOs and computer gaming to the integrated circuit and Ethernet -- a range of advancements that have little in common except they changed our lives.
Neil Fromer is the executive director of the Resnick Institute, a program for energy and sustainability at the California Institute of Technology, working to develop new ideas and research technologies related to providing a sustainable future. He spoke to us about the severity of the current drought in California and how solar energy can help prevent such situations in the future.
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.