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
What connects the elderly and sports people? Smart sensor technology
5 hours ago |
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Innovative smart sensing devices promise to boost mobility and quality of life for the elderly, reduce healthcare costs and even give sports people an edge through more effective training.
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 ...
Supermarket robot to help the elderly (w/ Video)
Dec 17, 2009 |
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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.
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Study shows a key protein helps control blood pressure
23 hours ago |
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University of Iowa researchers have shown that a protein channel helps nerve sensors in blood vessels keep blood pressure in check. Without the protein channel, known as ASIC2, the sensors are unable to send the brain the ...
Controlling the TV with a wave of the hand
Electronics / Consumer & Gadgets
Dec 23, 2009 |
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Touchscreens are so yesterday. Remote controls? So last century. The future is controlling your devices with a simple wave of the hand.
Mexico's conch shells yield clues into effects of warming
Dec 22, 2009 |
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Divers plumb the turquoise depths of ocean waters some 100 kilometers south of this vacation paradise, in search of the distinctive queen conch shell prized by vacationers and souvenir-seekers.
The next medical frontier: nano-surgery
Nanotechnology / Bio & Medicine
Dec 21, 2009 |
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(PhysOrg.com) -- Engineering professor's nanorobot could be performing non-invasive surgical procedures on patients with tumors within the next decade.
Smarter cars are gaining traction (w/ Video)
Dec 21, 2009 |
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(PhysOrg.com) -- Lives can depend on a vehicle's moment-by-moment traction. New European technology promises to make cars as good as experienced, alert drivers at sensing and adjusting to wet, snowy or icy ...
Medical simulators can breathe, bleed, give birth -- and help students hone skills
Dec 21, 2009 |
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It was a high-stress situation for three nurses who had never delivered babies: A woman was 32 weeks pregnant, in pain and having contractions.
National Robotics Engineering Center Demonstrates the Future of Smart Work
Dec 21, 2009 |
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The National Robotics Engineering Center, (NREC) at Carnegie Mellon University is at the forefront of partnering man with technology to improve safety and costs. Among the completed projects are, the Caisson ...
War-torn 'nursery' hopes to send monkeys to Mars
Space & Earth / Space Exploration
Dec 20, 2009 |
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The monkeys at this run-down research centre which was once the pride of Soviet science have seen it all -- a brutal civil war, freezing winters and starvation.
Physicists detect two candidate dark matter interactions, but say the data are not conclusive
Dec 18, 2009 |
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(PhysOrg.com) -- Scientists have spent decades searching for the elusive material known as dark matter, which is believed to make up 25 percent of the universe. On Thursday, Dec. 17, a team of physicists including ...
Physicists see through the opaque with 'T-rays'
Dec 18, 2009 |
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"T-rays" may make X-rays obsolete as a means of detecting bombs on terrorists or illegal drugs on traffickers, among other uses, contends a Texas A&M physicist who is helping lay the theoretical groundwork to make the concept ...
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