| 单词 | infrared |
| 释义 | infrared (ɪnfrəred ) also infra-red 1. adjective [ADJECTIVE noun] Infrared radiation is similar to light but has a longer wavelength, so we cannot see it without special equipment. 2. adjective [ADJECTIVE noun] Infrared equipment detects infrared radiation. ...searching with infra-red scanners for weapons and artillery. Collocations: infrared heat The new version reflects 95.5 per cent and radiates infrared heat efficiently. Times,Sunday Times The vault was protected by cameras, a 24-hour guard and 12in-thick steel doors, as well as light, motion and infrared heat sensors. Times, Sunday Times The researchers have made a material that consists of a thin film of copper—which very effectively reflects infrared heat—on top of a stretchy, substantially-less-reflective layer of rubber. Retrieved from Wikipedia CC BY-SA 3.0 Infrared heat lamps are commonly incandescent bulbs which are able to produce infrared radiation. Retrieved from Wikipedia CC BY-SA 3.0 Electric- or gas-powered heating elements may be used, which utilize adjustable infrared heat. Retrieved from Wikipedia CC BY-SA 3.0 The researchers zapped samples with beams of infrared laser light from 8mm to 17mm for about 16 seconds. Times, Sunday Times The glasses work by shining an infrared laser through a tiny grating, projecting thousands of beams of infrared light into the wearer's 'line of sight'. Times, Sunday Times I also like the low-speed safety system which uses an infrared laser to detect objects ahead, including other cars and pedestrians. The Sun Scientists have confirmed one of nature's crueller twists with a new technique of analysing live skin composition using pulses of infrared laser light. Times, Sunday Times Most first-generation disc devices had an infrared laser reading head. Retrieved from Wikipedia CC BY-SA 3.0 Method A device emitting a beam of infrared light is rolled over the skin. Times, Sunday Times (2009) It uses infrared light to capture hundreds of images within seconds. The Sun (2011) That meant we had to work with only two light sources: the moon and infrared light. Times, Sunday Times (2006) The three elements monitor infrared light that bounces off objects in front of the camera, allowing it to detect depth. Times, Sunday Times (2015) It works by producing a sheet of infrared light, which acts as a barrier to keep mosquitoes out of a specific area. Times, Sunday Times (2014) Greenhouse gas: some gases can absorb infrared radiation and retain it in the atmosphere. Times, Sunday Times (2008) Most of this warming is in the form of infrared radiation which the earth gives off and the atmosphere absorbs. Eating the Sun: How Plants Power the Planet (2007) He came across infrared radiation by accident when splitting sunlight into its constituent colours by passing it through a prism. Times, Sunday Times (2008) They absorb 100% of infrared rays - which can accelerate drying of the eyes - as well as ultraviolet. Times, Sunday Times It also reduces infrared rays to help keep the interior temperature constant. Times, Sunday Times The prosecutors said that experts had examined the painting using x-rays, infrared rays, digital imaging and handwriting analysis. Times, Sunday Times Both conditions are caused by unprotected exposure to the highly concentrated ultraviolet and infrared rays emitted by the welding arc. Retrieved from Wikipedia CC BY-SA 3.0 The infrared scanner can detect devices in under five seconds and has already been tested at several airports. The Sun Instead of encasing his body in plastercasts, he now uses an infrared scanner and software that allows him to push the original body shape farther into abstraction. Times, Sunday Times The infrared scanners can pick out a concealed object on a person. Times, Sunday Times Despite a search involving helicopters, infrared scanners and bloodhounds, there has been no sign of him. Times, Sunday Times Sensors include infrared scanners and radar/sonar, along with a full-range radio and intercom system. Retrieved from Wikipedia CC BY-SA 3.0 It uses an infrared sensor to recognise when your appliances have gone into standby mode and turns them off to save energy. Times, Sunday Times These sensors include: sonic, which work like radar; optical, which uses an infrared sensor; and bumper, physical contact sensor. Retrieved from Wikipedia CC BY-SA 3.0 It may either operate with a button, or more recently, automatically using an infrared sensor. Retrieved from Wikipedia CC BY-SA 3.0 For example, the inspiration for the infrared sensor came from the thermosensitive pit organ of rattlesnake. Retrieved from Wikipedia CC BY-SA 3.0 An optional infrared sensor was available as well. Retrieved from Wikipedia CC BY-SA 3.0 The impurities measured are at the atomic level within the crystal lattice of carbon atoms and so, unlike inclusions, require an infrared spectrometer to detect. Retrieved from Wikipedia CC BY-SA 3.0 It was completed several years later, and for a time was known as the most powerful prism infrared spectrometer. Retrieved from Wikipedia CC BY-SA 3.0 The spacecraft instrumentation includes a framing camera, a visual and infrared spectrometer, and a gamma-ray and neutron detector. Retrieved from Wikipedia CC BY-SA 3.0 To achieve this, the instrument combined a telescope with an infrared spectrometer. Retrieved from Wikipedia CC BY-SA 3.0 For this reason far infrared spectrometers have to be freed of atmospheric water vapour either by purging with a dry gas or by evacuation. Retrieved from Wikipedia CC BY-SA 3.0 The spectra of polar molecules can be measured in absorption or emission by microwave spectroscopy or by far infrared spectroscopy. Retrieved from Wikipedia CC BY-SA 3.0 The molecular geometry of both rotamers can be obtained experimentally by high resolution infrared spectroscopy augmented with in silico work. Retrieved from Wikipedia CC BY-SA 3.0 Infrared spectroscopy has been used extensively to distinguish between isomers. Retrieved from Wikipedia CC BY-SA 3.0 The core themes of his work are supercritical fluids, infrared spectroscopy and lasers. Retrieved from Wikipedia CC BY-SA 3.0 Infrared spectroscopy of surface sites and adsorbed molecules can then be used to monitor the change in the vibrational frequencies upon adsorption. Retrieved from Wikipedia CC BY-SA 3.0 This faint cosmic light, which presents itself as a series of spikes in the infrared spectrum, had no easily identifiable source. Retrieved from Wikipedia CC BY-SA 3.0 When oxygen molecules collide, they absorb light in a specific band of the infrared spectrum. Times,Sunday Times We might as well be urged to admire the colours in the infrared spectrum. Times, Sunday Times Different sources use different boundaries for the far infrared spectrum; for example, astronomers sometimes define far infrared as wavelengths between 25 m and 350 m. Retrieved from Wikipedia CC BY-SA 3.0 The composition of interstellar ice can be determined through their infrared spectrum. Retrieved from Wikipedia CC BY-SA 3.0 Moving an infrared telescope out past the dust will increase the effectiveness of the instrument. Retrieved from Wikipedia CC BY-SA 3.0 The sensors consist of a millimeter-wave radar, a passive millimeter-wave radiometer and an infrared telescope. Retrieved from Wikipedia CC BY-SA 3.0 This invention, cooled by liquid helium, led the way for current infrared telescope development. Retrieved from Wikipedia CC BY-SA 3.0 With radio and infrared telescopes, stargazers have been able to turn this hidden symphony of light into a new realm of colours. Times, Sunday Times Infrared telescopes may be ground-based, air-borne, or space telescopes. Retrieved from Wikipedia CC BY-SA 3.0 Staff wore masks and greeted customers with an infrared thermometer and a questionnaire about their recent medical and travel history. Times,Sunday Times Our temperatures are checked daily on the way into breakfast, with an infrared thermometer discreetly pointed at our wrists. Times,Sunday Times Medical thermometers such as mercury-in-glass thermometers, infrared thermometers, pill thermometers, and liquid crystal thermometers are used in health care settings to determine if individuals have a fever or are hypothermic. Retrieved from Wikipedia CC BY-SA 3.0 An infrared transmitter installed at venues could temporarily disable the devices' record functions. The Sun A radio or infrared transmitter picks up the student's response and sends it to the computer, which stores the responses and can provide detailed reports. Retrieved from Wikipedia CC BY-SA 3.0 An infrared transmitter and receiver mounted around the eyepiece monitored the position of the iris, thus knowing where the photographer was looking and focusing on that point. Retrieved from Wikipedia CC BY-SA 3.0 The optical uses an infrared transmitter/receiver and sends an infrared signal which then gets reflected back; working on a similar concept as the sonic sensor. Retrieved from Wikipedia CC BY-SA 3.0 The signal was transmitted to each hats receiver by 14 infrared transmitters installed throughout the stadium. Retrieved from Wikipedia CC BY-SA 3.0 In the infrared wavelength range several absorption maxima and fluctuations in the refractive index appear. Retrieved from Wikipedia CC BY-SA 3.0 The particles captured the infrared wavelengths and emitted shorter wavelengths within the visible range. Times, Sunday Times Water vapor absorbs a significant amount of infrared radiation, and the atmosphere itself emits at infrared wavelengths. Retrieved from Wikipedia CC BY-SA 3.0 Protostars are encompassed in dust, and are thus more readily visible at infrared wavelengths. Retrieved from Wikipedia CC BY-SA 3.0 The camera has six light filters which span from ultraviolet to near infrared wavelengths. Retrieved from Wikipedia CC BY-SA 3.0 Translations: Chinese: 红外线的 Japanese: 赤外線の |
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