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
GE Scientists Developing Wearable RFID Sensors to Detect Airborne Chemical Agents
Chemistry / Analytical Chemistry
Nov 20, 2009 |
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GE Global Research, the technology development arm for the General Electric, today announced a $2 million award from the National Institute of Environmental Health Sciences to develop wearable RFID sensors ...
Counterfeit euros are detected with an optical mouse
Nov 17, 2009 |
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The sensor of some optical mice can be used to easily and cheaply detect counterfeit euros, according to a study published by Spanish researchers of the University of Lleida (UdL) in the scientific journal ...
Open shop for environmental data
Nov 17, 2009 |
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(PhysOrg.com) -- A new way to access and reuse environmental data from diverse sources has been devised by European researchers. They foresee a future where environmental data and services are offered on the open market.
Robotic Devices Providing Home-Care Rehabilitation (w/ Video)
Nov 13, 2009 |
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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 ...
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.
Tackling new Arctic challenges from space
Nov 05, 2009 |
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International scientists, researchers and decision makers met at the 'Space and the Arctic workshop' to identify the needs and challenges of working and living in the rapidly changing Arctic and to explore how space-based ...
Research leads to improved human, object detection technology
Technology / Computer Sciences
Nov 03, 2009 |
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When searching for basketball videos online, a long list of websites appears, which may contain a picture or a word describing a basketball. But what if the computer could search inside videos for a basketball? ...
'Fear detector' being developed
Nov 03, 2009 |
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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.
Digital 'plaster' for monitoring vital signs undergoes first clinical trials
Medicine & Health / Medications
Nov 02, 2009 |
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A wireless digital 'plaster' that can monitor vital signs continuously and remotely is being tried out with patients and healthy volunteers at Imperial College Healthcare NHS Trust, in a new clinical trial ...
Microsoft Researchers Developing Muscle-Based PC Interface (w/ Video)
Technology / Computer Sciences
Oct 30, 2009 |
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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 |
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(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 ...
Earthquake early-warning system soon to enter testing
Space & Earth / Earth Sciences
Oct 20, 2009 |
5 / 5 (3) |
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It is the Holy Grail of seismology, sought by earthquake scientists for more than a century: the ability to provide advance warning of the Big One, so the public can react before a massive quake unleashes its rolling thunder ...
Tiny motes sniff out chemical, biological threats
Chemistry / Analytical Chemistry
Oct 12, 2009 |
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(PhysOrg.com) -- Research to develop a new method to detect biological and chemical threats may also lead to new approaches for removing pollutants from the environment.
New technology detects chemical weapons in seconds
Chemistry / Analytical Chemistry
Oct 05, 2009 |
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Scientists at Queen's University Belfast are developing new sensors to detect chemical agents and illegal drugs which will help in the fight against the threat of terrorist attacks.
Wi-Fi signals can see through walls
Oct 05, 2009 |
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(PhysOrg.com) -- Researchers at the University of Utah, USA, have discovered that variations in signal strengths in wireless networks can be used to "see" movements of people on the other side of walls or ...
