网站首页  英汉词典

请输入您要查询的英文单词:

 

单词 Blackbody Spectrum
释义

Blackbody Spectrum

中文百科

黑体 (物理学) Black body

(重定向自Blackbody Spectrum)
当黑体的温度降低时,黑体辐射曲线峰值会移向较低强度和更长波长的位置。黑体辐射曲线图可以和经典模型瑞利-金斯定律相比较。
黑体辐射的颜色(色度)设根据黑体的温度变化的;这些颜色的轨迹,如上面的CIE1931色彩空间图所示,为普朗克轨迹(或称为黑体轨迹)。

在热力学中,黑体英语:Black body),旧称绝对黑体,是一个理想化的物体,它能够吸收外来的全部电磁辐射,并且不会有任何的反射与透射。随着温度上升,黑体所辐射出来的电磁波与光线则称做黑体辐射。这个名词在1862年由克希荷夫所提出并引入热力学内。

英语百科

Black body 黑体 (物理学)

(重定向自Blackbody Spectrum)
As the temperature of a black body decreases, its intensity also decreases and its peak moves to longer wavelengths. Shown for comparison is the classical Rayleigh–Jeans law and its ultraviolet catastrophe.
An approximate realization of a black body as a tiny hole in an insulated enclosure
An idealized view of the cross-section of a star. The photosphere contains photons of light nearly in thermal equilibrium, and some escape into space as near-black-body radiation.
Effective temperature of a black body compared with the B-V and U-B color index of main sequence and super giant stars in what is called a color-color diagram.[36]

A black body is an idealized physical body that absorbs all incident electromagnetic radiation, regardless of frequency or angle of incidence. A white body is one with a "rough surface [that] reflects all incident rays completely and uniformly in all directions."

随便看

 

英汉网英语在线翻译词典收录了3779314条英语词汇在线翻译词条,基本涵盖了全部常用英语词汇的中英文双语翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2024 encnc.com All Rights Reserved
更新时间:2025/6/21 3:49:03