Sensor
hideA sensor is a device that measures a physical quantity and converts it into a signal which can be read by an observer or by an instrument. For example, a mercury thermometer converts the measured temperature into expansion and contraction of a liquid which can be read on a calibrated glass tube. A thermocouple converts temperature to an output voltage which can be read by a voltmeter. For accuracy, all sensors need to be calibrated against known standards.
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News tagged with sensors
New Breakthrough in Global Warming Plant Production
Mar 30, 2009 |
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Researchers at the universities of Leicester and Oxford have made a discovery about plant growth which could potentially have an enormous impact on crop production as global warming increases.
French physicists claim breakthrough in ultra-fast data access
May 31, 2009 |
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French physicists said on Sunday they had used ultra-fast lasers that could accelerate storage and retrieval of data on hard discs by up to 100,000 times, pointing the way to a new generation of IT wizardry.
Researchers see exotic force for first time
Jan 07, 2009 |
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(PhysOrg.com) -- For the first time, researchers have measured a long-theorized force that operates at distances so tiny they’re measured in billionths of a meter, which may have important applications in ...
Robotic Hand That Senses Touch (w/ Video)
Oct 21, 2009 |
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(PhysOrg.com) -- Developed by researchers at Lund University in Sweden and Scuola Superiore Sant'Anna in Italy, the Smart Hand project has given patient, Robin af Ekenstam (see video) the sense of touch in ...
Catching quakes with laptops
Technology / Computer Sciences
Oct 27, 2008 |
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Inside your laptop is a small accelerometer chip, there to protect the delicate moving parts of your hard disk from sudden jolts. It turns out that the same chip is a pretty good earthquake sensor, too -- ...
Graphite mimics iron's magnetism
Oct 04, 2009 |
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Researchers of Eindhoven University of Technology and the Radboud University Nijmegen in The Netherlands show for the first time why ordinary graphite is a permanent magnet at room temperature. The results ...
Tiny whispering gallery: Sensor can detect a single nanoparticle and take its measurement
Dec 18, 2009 |
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(PhysOrg.com) -- Nanotechnology has already made it to the shelves of your local pharmacy and grocery: nanoparticles are found in anti-odor socks, makeup, makeup remover, sunscreen, anti-graffiti paint, home ...
Japanese gadget controls iPod in blink of an eye
Electronics / Consumer & Gadgets
Mar 08, 2009 |
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A wink, a smile or a raised eyebrow could soon change the music on your iPod or start up the washing machine, thanks to a new Japanese gadget.
Hubble to receive high-tech James Webb Space Telescope technology
Space & Earth / Space Exploration
May 08, 2009 |
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Scientists and engineers now creating new technologies for NASA's James Webb Space Telescope, have realized they can be used to enhance the Hubble's Advanced Camera for Surveys (ACS) in the upcoming servicing ...
Monitoring water through a snake's eyes
May 12, 2009 |
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Although most Americans take the safety of their drinking water for granted, that ordinary tap water could become deadly within minutes, says Prof. Abraham Katzir of Tel Aviv University's School of Physics ...
Microsoft Researchers Developing Muscle-Based PC Interface (w/ Video)
Technology / Computer Sciences
Oct 30, 2009 |
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(PhysOrg.com) -- Microsoft researches have teamed up with the University of Washington and the University of Toronto to develop a muscle-controlled interface that allows for hands-free, gesture-driven interaction ...
Quantum cat's 'whiskers' offer advanced sensors
Apr 24, 2009 |
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(PhysOrg.com) -- A team led by Oxford University scientists has turned one of the key problems with quantum entangled systems - that they are easily ‘disturbed’ by their environment - into an advantage which ...
DNA-Based Assembly Line for Nano-Construction of New Biosensors, Solar Cells (w/Video)
Nanotechnology / Nanomaterials
Mar 30, 2009 |
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(PhysOrg.com) -- Building on the idea of using DNA to link up nanoparticles — particles measuring mere billionths of a meter — scientists at the U.S. Department of Energy’s Brookhaven National Laboratory have ...
Will carbon nanotubes replace indium tin oxide?
Nanotechnology / Nanomaterials
Mar 09, 2009 |
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(PhysOrg.com) -- Up until now, George Grüner tells PhysOrg.com, most of the studies regarding the properties - and uses - of carbon nanotubes have been restricted to the visible spectral range. “We, however, were interested in the ...
Researchers set alarm for incoming space storms
Space & Earth / Space Exploration
May 27, 2009 |
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(PhysOrg.com) -- A team of researchers at the University of Alberta in Edmonton has broken new ground in outer space by pinpointing the impact epicentre of an Earthbound space storm as it crashes into the ...
