Each isolator houses five piezoelectric actuators and a passive rubber mount 100 times stiffer than standard pneumatic isolators.
The actuators control vibration along three axes. Piezoelectric actuators receive information on disturbances through absolute velocity sensors. The information from the sensors causes the actuators to expand and contract as required, moving out of the way of the vibration and diminishing or eliminating its impact.
Stacis is a six-degree-of-freedom system with a 0.20-Hz resonant frequency, 0.30-to 250 Hz active bandwidth, and a 0.30-second settling time after a step input.
Steven Ryan, Technical Manufacturing Co., 15 Centennial Dr., Peabody, MA 01960; (978)532-6330.
Samsung's Galaxy line of smartphones used to fare quite well in the repairability department, but last year's flagship S5 model took a tumble, scoring a meh-inducing 5/10. Will the newly redesigned S6 lead us back into star-studded territory, or will we sink further into the depths of a repairability black hole?
In 2003, the world contained just over 500 million Internet-connected devices. By 2010, this figure had risen to 12.5 billion connected objects, almost six devices per individual with access to the Internet. Now, as we move into 2015, the number of connected 'things' is expected to reach 25 billion, ultimately edging toward 50 billion by the end of the decade.
NASA engineer Brian Trease studied abroad in Japan as a high school student and used to fold fast-food wrappers into cranes using origami techniques he learned in library books. Inspired by this, he began to imagine that origami could be applied to building spacecraft components, particularly solar panels that could one day send solar power from space to be used on earth.
Biomedical engineering is one of the fastest growing engineering fields; from medical devices and pharmaceuticals to more cutting-edge areas like tissue, genetic, and neural engineering, US biomedical engineers (BMEs) boast salaries nearly double the annual mean wage and have faster than average job growth.
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