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
Will carbon nanotubes replace indium tin oxide?
Nanotechnology / Nanomaterials
Mar 09, 2009 |
4.9 / 5 (8) |
2
(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 ...
Robotic Devices Providing Home-Care Rehabilitation (w/ Video)
Nov 13, 2009 |
5 / 5 (4) |
0
(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 ...
'Fear detector' being developed
Nov 03, 2009 |
2.8 / 5 (6) |
11
(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.
Microsoft Researchers Developing Muscle-Based PC Interface (w/ Video)
Technology / Computer Sciences
Oct 30, 2009 |
4.7 / 5 (10) |
2
(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 |
4.8 / 5 (27) |
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) |
1
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 ...
Cheap, sensitive sensors could detect explosives, toxins in water
Sep 24, 2009 |
4 / 5 (3) |
0
(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 ...
New findings could help hybrid, electric cars keep their cool
Sep 22, 2009 |
3.3 / 5 (3) |
0
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, ...
French physicists claim breakthrough in ultra-fast data access
May 31, 2009 |
4.4 / 5 (31) |
16
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 set alarm for incoming space storms
Space & Earth / Space Exploration
May 27, 2009 |
4.4 / 5 (10) |
0
(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 ...
Catching the lightwave: Nano-mechanical sensors 'wired' by photonics
Apr 26, 2009 |
4.8 / 5 (5) |
3
As researchers push towards detection of single molecules, single electron spins and the smallest amounts of mass and movement, Yale researchers have demonstrated silicon-based nanocantilevers, smaller than ...
Quantum cat's 'whiskers' offer advanced sensors
Apr 24, 2009 |
4.6 / 5 (10) |
11
(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 ...
Earthshine reflects Earth's oceans and continents from the dark side of the moon
Space & Earth / Space Exploration
Apr 07, 2009 |
4.2 / 5 (5) |
5
Researchers from the University of Melbourne and Princeton University have shown for the first time that the difference in reflection of light from the Earth's land masses and oceans can be seen on the dark side of the moon, ...
DNA-Based Assembly Line for Nano-Construction of New Biosensors, Solar Cells (w/Video)
Nanotechnology / Nanomaterials
Mar 30, 2009 |
5 / 5 (9) |
3
(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 ...
Mitsubishi 3D Touch Panel Demonstrated
Mar 13, 2009 |
4 / 5 (2) |
1
(PhysOrg.com) -- A prototyped capacitive touch panel was demonstrated by Mitsubishi Electric Corp at the Interaction 2009 in Tokyo, Japan. The 3D touch panel can detect not only x- and y- coordinates but also ...
