News tagged with sensors
Magnetic sensors can measure distances between vehicles
(PhysOrg.com) -- Every vehicle has a magnetic field, and researchers have now found that a vehicle’s magnetic field has an inverse relationship with distance at small distances. The relationship provides ...
Oct 18, 2011 |
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Nimbus Lab sends up quadrotors for wireless charging (w/ Video)
(Phys.org) -- Researchers at the University of Nebraska-Lincoln’s Nimbus Lab are exploring wireless power transmission as a way to power devices. They have designed and built a custom power-transfer and ...
May 31, 2012 |
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Graphene on boron nitride work may lead to breakthrough in microchip technology
(Phys.org) -- Graphene is the wonder material that could solve the problem of making ever faster computers and smaller mobile devices when current silicon microchip technology hits an inevitable wall. Graphene, ...
May 28, 2012 |
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An unlikely route to ferroelectricity
(Phys.org) -- Ferroelectricity, which was first observed in the 1940s, is an interesting phenomenon involving the spontaneous (non-induced) formation of charge polarization (separation of charge) in certain ...
May 18, 2012 |
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Electron hopping in graphene oxide leads to highly sensitive sensing
(Phys.org) -- Graphene has many promising applications on its own, but pairing the two-dimensional material with the semiconductor titanium dioxide (TiO2) extends its capabilities even further. A team of ...
Nanotechnology / Nanomaterials
May 17, 2012 |
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Ultrasensitive biosensor promising for medical diagnostics
(Phys.org) -- Researchers have created an ultrasensitive biosensor that could open up new opportunities for early detection of cancer and "personalized medicine" tailored to the specific biochemistry of individual ...
May 15, 2012 |
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Research group creates highly sensitive photodetector from graphene and quantum dots
(Phys.org) -- Researchers in Spain have succeeded in building a photodetector that is a billion times more sensitive than other such detectors based on graphene and could herald the use of graphene based light ...
May 15, 2012 |
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Electronic nose prototype may be worn for safety-sniffing
(Phys.org) -- A UK company has developed an electronic nose that the company says can make a real difference, as a fast-acting device for detecting harmful substances in the environment. Peratech claims its electronic nose ...
Chemistry / Analytical Chemistry
May 12, 2012 |
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Research team uses robot eye technology to help the blind
(Phys.org) -- A research team from Pierre and Marie Curie University in Paris have ported technology originally developed to help robots maneuver in real world environments to Braille enabled devices that help vision impaired ...
May 02, 2012 |
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Stealth game steals info from Android sensors
(Phys.org) -- No joke. A proof-of-concept application for phones running Android pretends to be a fun challenge asking the user to identify identical icons from a bunch of images. All the while the app monitors ...
Apr 24, 2012 |
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3-D, after-the-fact focus image sensors invented
(PhysOrg.com) -- At the heart of digital photography is a chip called an image sensor that captures a map of the intensity of the light as it comes through the lens and converts it to an electronic signal.
Apr 03, 2012 |
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Barrier to faster graphene devices identified and suppressed
These days graphene is the rock star of materials science, but it has an Achilles heel: It is exceptionally sensitive to its electrical environment.
Nanotechnology / Nanomaterials
Mar 13, 2012 |
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New design for a metamaterial could be far more efficient at capturing sunlight than existing solar cells
Metamaterials are a new class of artificial substances with properties unlike anything found in the natural world. Some have been designed to act as invisibility cloaks; others as superlenses, antenna systems ...
Mar 09, 2012 |
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Exotic material shows promise as flexible, transparent electrode
(PhysOrg.com) -- An international team of scientists with roots at SLAC and Stanford has shown that ultra-thin sheets of an exotic material remain transparent and highly conductive even after being deeply ...
Mar 08, 2012 |
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Implanted biofuel cell converts bug's chemistry into electricity: Scientists take step toward cyborgs
An insect's internal chemicals can be converted to electricity, potentially providing power for sensors, recording devices or to control the bug, a group of researchers at Case Western Reserve University report.
Jan 06, 2012 |
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Sensor
A 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.
For more information about Sensor, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
