您现在的位置是:娛樂 >>正文
【】Light: Science & Applications.
娛樂53人已围观
简介A new camera developed in Sweden is faster than any photography gear on the planet.。Researchers at S ...
A new camera developed in Sweden is faster than any photography gear on the planet.。
Researchers at Sweden's Lund University built a crazy-fast camera that can capture a staggering five trillion frames per second, or events as short as 0.2 trillionths of one second. Conventional cameras, by contrast, top out at around 100,000 frames per second 。
With the new high-speed film camera, the researchers plan to film rapid processes in chemistry, biology, and physics that are otherwise impossible to capture in photos or videos.。
SEE ALSO:Scientists store digital files in an unlikely place: DNA。"Explosions, plasma flashes, turbulent combustion, brain activity in animals, and chemical reactions — we are now able to film such extremely short processes," Elias Kristensson, a combustion physics researcher and co-inventor of the camera, said in a news release. 。

Kristensson and his research partner Andreas Ehn plan to use the camera — called FRAME (Frequency Recognition Algorithm for Multiple Exposures) — to film combustion as it occurs at the molecular level, they said.。
Combustion is a chemical reaction between a fuel and oxygen, which produces heat. The researchers' ultimate goal is to help make fuel-burning machines (such as car engines, gas turbines, and boilers) more energy-efficient by examining combustion at every fleeting, minuscule stage.。
Thanks for signing up!。
"In the long term, the technology can also be used by industry and others," Kristensson said. 。 The scientists and his colleagues recently published a preview article of the camera technology in the journal。
Light: Science & Applications.。
The FRAME camera works differently than more conventional models. Most high-speed cameras capture images one by one, in a rapid sequence. But the Swedish creation uses a computer algorithm that captures several coded images in one picture; those are later sorted into a video sequence. 。Elias Kristensson, left, and Andreas Ehn.Credit: Kennet Ruona/university of lund。
To film a scientific process, such as a chemical reaction, the camera exposes it to light by firing off laser flashes. Each light pulse is given a unique code, and the object reflects those bursts of light, which merge into a single photograph. Next, those images are separated using an encryption key.。
The researchers said that in addition to setting a new speed record, the camera is especially exciting because of its ability to film chemical changes in real time. Without this new high speed camera, researchers could only visualize such rapid events by photographing still images of the process, Kristensson explained. 。
"You then have to attempt to repeat identical experiments to provide several still images, which can later be edited into a movie," he said. "The problem with this approach is that it is highly unlikely that a process will be identical if you repeat the experiment." 。
The Swedish team said they expect to make more film materials available this fall. Get ready to geek out. 。
The Swedish team said they expect to make more film materials available this fall. Get ready to geek out. 。
Featured Video For You。
Tags:
转载:欢迎各位朋友分享到网络,但转载请说明文章出处“夫榮妻貴網”。http://new.maomao321.com/news/30c5999910.html
相关文章
Florida hurricane forecast remains uncertain, but trends in state's favor
娛樂For days, a war has been raging between two of the premiere computer models used to help predict the ...
【娛樂】
阅读更多國足24日結束隔離下月初海口集結 歸化球員或踢完12強賽
娛樂國足24日結束隔離下月初海口集結 歸化球員或踢完12強賽_長春亞泰隊_蘇州_亞冠www.ty42.com 日期:2022-02-21 20:01:00| 評論(已有331748條評論) ...
【娛樂】
阅读更多22日賠率:尤文客場戰平黃潛 切爾西主場輕取裏爾
娛樂22日賠率:尤文客場戰平黃潛 切爾西主場輕取裏爾_方麵_指數_大小球www.ty42.com 日期:2022-02-22 15:01:00| 評論(已有331848條評論) ...
【娛樂】
阅读更多
