News tagged with detectors
A sensor (also called detector) 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-in-glass 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, most sensors are calibrated against known standards.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
(Medical Xpress)—Despite the well known inaccuracies of polygraph lie detectors, they remain in widespread, if selective, use by the criminal justice system. While they are far from truth machines, if the ...
Neuroscience Mar 26, 2013 | 5 / 5 (1) | 6 |
Researchers have given rats the ability to "touch" infrared light, normally invisible to them, by fitting them with an infrared detector wired to microscopic electrodes implanted in the part of the mammalian brain that processes ...
Neuroscience Feb 12, 2013 | 5 / 5 (4) | 0 |
(Medical Xpress) -- Researchers in the US have developed a new detector for measuring rare circulating tumor cells (CTCs) in samples of whole blood.
Cancer Jul 07, 2012 | 4.3 / 5 (3) | 0 |
Lies Van Nieuwenhove, researcher at the Antwerp Institute of Tropical Medicine, has produced proteins imitating typical parts of the sleeping sickness parasite. They can be used in more efficient diagnostic ...
Diseases, Conditions, Syndromes May 22, 2012 | not rated yet | 0
Fool me once, shame on you. Fool me twice, shame on my parahippocampal gyrus.
Neuroscience May 17, 2012 | 5 / 5 (2) | 2 |