File:Crookes_radiometer.jpg · Wikimedia Commons · See Wikimedia Commons
Also known as roentgenometer
thumb|210px|An example of a Crookes radiometer. The vanes rotate when exposed to light, with faster rotation for more intense light, providing a quantitative measurement of electromagnetic radiation intensity. A radiometer is an instrument for measuring radiometric quantities such as radiant flux (power), irradiance, or radiance. Definitions typically limit radiometry to optical radiation, but some definitions include other kinds of electromagnetic radiation. Radiometers typically measure infrared radiation, visible radiation (light), ultraviolet radiation, or some combination of these.
Wikidata facts
- Subclass of
- measuring instrument
- Image
- Crookes radiometer.jpg
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- Commons gallery
- Light mill
- Commons category
- Radiometers
- described by source
- Encyclopædia Britannica 11th edition
Sources (2)
via Wikidata · CC0
Article · 中文
辐射计,又称“放射计”,是一种测量电磁辐射的辐射通量的装置。“放射计”这一术语有时特指红外辐射检测计,但也可指检测其它各种波长的电磁辐射的检测计。 较常见的辐射计是克鲁克斯辐射计(1873年由威廉·克鲁克斯發明),它是一个内有转子(带有颜色深浅不同的叶片)的处在在中的早期模型,在受到光照时叶片会转动。 (1901年發明)的原理与克鲁克斯辐射计不同,这类辐射计更加灵敏。 微波辐射计用于检测微波波段的电磁辐射。微波辐射计内充有氩气以使其旋转。 MEMS(Micro-electromechanical Systems,微機電系統)辐射计,由(Patrick Jankowiak)发明,可以按尼克斯辐射计或克鲁克斯辐射计的原理运作,而且可以检测更宽的波段和粒子的能级。
Abstract from DBpedia / Wikipedia · CC BY-SA