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
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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The next medical frontier: nano-surgery
Nanotechnology / Bio & Medicine
15 hours ago |
5 / 5 (2) |
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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)
18 hours ago |
5 / 5 (1) |
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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
21 hours ago |
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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
21 hours ago |
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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 |
2 / 5 (6) |
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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 |
4.1 / 5 (16) |
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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 |
4.2 / 5 (10) |
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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 ...
IBM Reveals Five Innovations that Will Change Cities in the Next Five Years (w/ Video)
Dec 17, 2009 |
3.4 / 5 (9) |
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Today, IBM unveiled a list of innovations that have the potential to change how people live, work and play in cities around the globe over the next five to ten years.
Science's breakthrough of the year: Uncovering 'Ardi'
Dec 17, 2009 |
2.3 / 5 (3) |
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The research that brought to light the fossils of Ardipithecus ramidus, a hominid species that lived 4.4 million years ago in what is now Ethiopia, has topped Science's list of this year's most significant s ...
Light used to map effect of neurons on one another
Medicine & Health / Neuroscience
Dec 17, 2009 |
5 / 5 (3) |
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(PhysOrg.com) -- Scientists at Harvard University have used light and genetic trickery to trace out neurons' ability to excite or inhibit one another, literally shedding new light on the question of how neurons ...
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