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
Supermarket robot to help the elderly (w/ Video)
21 hours ago |
4.8 / 5 (5) |
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(PhysOrg.com) -- Robovie-II, a retail-assistant robot designed to help elderly and disabled people shop in supermarkets, is being tested in Kyoto, in Japan.
Newly identified enzymes help plants sense elevated CO2 and could lead to water-wise crops
Dec 13, 2009 |
5 / 5 (3) |
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Biologists have identified plant enzymes that may help to engineer plants that take advantage of elevated carbon dioxide to use water more efficiently. The finding could help to engineer crops that take advantage of rising ...
Low-cost temperature sensors, tennis balls to monitor mountain snowpack
Dec 14, 2009 |
not rated yet |
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(PhysOrg.com) -- Fictional secret agent Angus MacGyver knew that tough situations demand ingenuity. Jessica Lundquist takes a similar approach to studying snowfall. The University of Washington assistant professor ...
Californians -- and their cell phones -- will help computer scientists monitor air pollution
Technology / Computer Sciences
Dec 04, 2009 |
1 / 5 (2) |
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You want to go for a run, but you don't want to run in polluted air that might aggravate your asthma. University of California, San Diego computer scientists are creating a network of environmental sensors ...
Robotic Devices Providing Home-Care Rehabilitation (w/ Video)
Nov 13, 2009 |
5 / 5 (4) |
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(PhysOrg.com) -- A group of researchers, at Northeastern University, have developed several portable robotic devices to aid in the rehabilitation process of stroke victims. These devices are small enough for ...
Will carbon nanotubes replace indium tin oxide?
Nanotechnology / Nanomaterials
Mar 09, 2009 |
4.9 / 5 (8) |
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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 ...
'Fear detector' being developed
Nov 03, 2009 |
2.8 / 5 (6) |
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(PhysOrg.com) -- British scientists are aiming to develop a device that can detect the smell of fear, and that could one day identify terrorists, drug smugglers, and other criminals.
Safe journey for works of art
Dec 04, 2009 |
4 / 5 (1) |
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Valuable paintings travel long distances when they are shipped from one place to another. To minimize damage, they are packed in special picture cases. In future, these will be equipped with sensors to detect ...
Microsoft Researchers Developing Muscle-Based PC Interface (w/ Video)
Technology / Computer Sciences
Oct 30, 2009 |
4.7 / 5 (10) |
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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 ...
Robotic Hand That Senses Touch (w/ Video)
Oct 21, 2009 |
4.7 / 5 (28) |
10
(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 ...
Graphite mimics iron's magnetism
Oct 04, 2009 |
4.6 / 5 (17) |
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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 ...
French physicists claim breakthrough in ultra-fast data access
May 31, 2009 |
4.4 / 5 (31) |
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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.
New findings could help hybrid, electric cars keep their cool
Sep 22, 2009 |
3.3 / 5 (3) |
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Understanding precisely how fluid boils in tiny "microchannels" has led to formulas and models that will help engineers design systems to cool high-power electronics in electric and hybrid cars, aircraft, ...
Cheap, sensitive sensors could detect explosives, toxins in water
Sep 24, 2009 |
4 / 5 (3) |
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(PhysOrg.com) -- A sensitive new Stanford-developed disposable chip detects low concentrations of the explosive trinitrotoluene (TNT) and a close chemical cousin of the dreaded toxic nerve agent sarin in water ...
Samsung launches a new vacuuming robot
Electronics / Consumer & Gadgets
Nov 06, 2009 |
4.1 / 5 (8) |
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(PhysOrg.com) -- Samsung Electronics has launched its latest autonomous robot vacuum cleaner, the Tango, which is capable of vacuuming hardwood floors, carpets, and even beds without human assistance.
