28 Sep '12, 8pm

Motion Sensor Accurate to the Diameter of a Single Nucleus

Motion Sensor Accurate to the Diameter of a Single Nucleus

So, in addition to scales that can weigh single protein molecules to an accuracy of a few hundred times the mass of a proton, we now have a position sensor that can detect changes in displacement as small as 1/30,000th of the diameter of a single carbon atom, or about the diameter of a single carbon nucleus . Houxun Miao, Kartik Srinivasan, and Vladimir Aksyuk (researchers at the National Institute of Standards and Technology’s Center for Nanoscale Science and Technology) have built a microelectromechanical system (MEMS) that pushes the lower limits of distance and force measurement down to within a short hail of the theoretical limits—to 2.3 times the standard quantum limit. The device is a silicon-on-oxide chip fabricated via electron-beam lithography and reactive ion etching to leave a 15-micrometer-diameter silicon disk, a waveguide and actuators standing in relief fro...

Full article: http://spectrum.ieee.org/tech-talk/at-work/test-and-measu...

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Wearable sensor devices leverage MEMS motion tracking innovations #IMSResearch via @eetimes

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Research in Motion reveals saviour, BlackBerry 10

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e27.sg 25 Sep '12, 10pm

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