Consumer & Gadgets
Detecting dangerous gases in collapsed buildings due earthquakes or explosions and locating victims in hard-to-access places are among use scenarios of the Smelling Nano Aerial Vehicle (SNAV), a nanodrone designed and created ...
Jul 24, 2019
0
11
Electronics & Semiconductors
X-ray detection is widely used in medical imaging, radioactivity detection, security checking, industrial flaw inspection, and so on. In recent years, metal halide perovskites have demonstrated excellent performances in the ...
Mar 14, 2023
0
7
Hardware
Scientists at the Department of Energy's Oak Ridge National Laboratory are leading a new project to ensure that the fastest supercomputers can keep up with big data from high energy physics research.
Dec 14, 2022
0
6
Internet
Did you have trouble with Twitter on Friday? You weren't alone.
Feb 14, 2022
0
14
Automotive
U.S. crash investigators are urging the Federal Aviation Administration to require private planes to be equipped with carbon monoxide detectors, citing deadly crashes that were attributed to poisoning by the odorless gas.
Jan 21, 2022
0
4
Security
If you're heading out to a ball game at Oriole Park at Camden Yards next spring, you'll likely become a test subject for a new a security technology that uses low-energy radar with 3D imaging and artificial intelligence to ...
Dec 9, 2021
0
13
Engineering
Metal detectors now appear routinely in the entrances of many schools, airports and even houses of worship. They serve as portals to correctional facilities, prisons and courthouses, and guards often wave the hand-held models ...
Nov 7, 2019
0
2
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, licensed under CC BY-SA
