黑体

With the two cavity parameters ε〓 and K〓, instead of the only one ε〓, as rules to measure the cavity airtightness by ε〓 and the isothermalness by K〓 seperately, Eq.

重力式热管大面积蜂窝黑体辐射源本文还利用铜/水型重力式热管技术研制了大面积蜂窝黑体辐射源。

However, Marshall[1] derived the Planck's black body radiation formula from classical theory without any quantum hypothesizes, and also She[2,3] derived directly the quantization of light energy in vacuum and the Planck radiation formula from classical electromagnetic theory.

可是，英国科学家Marshall却不借助任何量子假设而仅仅依靠经典理论就导出了Planck的黑体辐射公式[1]，中国科学家She也不依靠任何量子理论而仅仅根据经典理论就直接导出了真空中光能量的量子化，还能顺利导出Planck的黑体辐射公式[2，3]。

Some valuable results are obtained in this dissertation, the most important are as follows:(1) The uncertainty in the determination of 〓Cs dc hyperfine polarizability constant κ is taken into account in the correction of blackbody ac Stark shift and it will bring out a fractional frequency uncertainty of about 4×10〓 to the correction.

本文还得到一些具有创新意义的研究结果，最主要的有：（1）我们首次考虑了直流极化率常数κ的测量误差对黑体辐射斯塔克频移修正误差的影响，经计算发现，由κ的测量误差导致的频移误差约为4×10〓，是黑体辐射斯塔克频移的主要误差来源。

Presents two factors of black body cavity′s accuracy according to Kirchhoff′s law,and gives a theoretical equation of these factors.

根据基尔霍夫理想黑体"腔体密闭性"和"腔体等温性"两项原则，提出由腔体密闭和等温程度所决定的黑体空腔精度两个分量的新概念，并给出这两个分量的理论公式。

It has been found that the spectral energy density and radiation pressure of a Kerr nonlinear blackbody are larger than those of a normal blackbody, and there is a regular variety of the spectral energy density and radiation pressure in a Kerr nonlinear blackbody with the change of temperature and frequency.

通过和普通黑体比较发现，克尔非线性黑体的光谱能量密度和辐射压强都要比普通黑体大，非线性黑体中的热辐射光谱能量密度和辐射压强随着温度和频率的改变有着规律的变化。

Relation equation between blackbody temperature and two color gray ratio of thermal radiation image was set up.

3进行激光熔池测温专用软件需求和可行性分析，描述了激光熔池热辐射图像的数据流程，采用模块化思想进行软件设计，基于数字图像处理技术，开发出一套激光再制造熔池测温专用软件，详细介绍了热辐射图像的数据采集、输入/输出、图像处理、温度计算模块及程序设计开发。4介绍了常用黑体辐射源的结构、加热控温方式和性能评价方式，对不同类型的黑体辐射源进行了详细描述，选择中国计量科学研究院的标准高温黑体辐射源进行温度标定，建立了热辐射图像比色值与温度之间的对应关系。

The temperature of the blackbody called the color temperature of the light source.

当光源所发出的颜色与&黑体&在某一温度下辐射的颜色相同时，&黑体&的温度就成为该光源的色温。

A normal method to eliminate these stripes is presented. And then a new method based on a stable reference source is presented and validated. And the two methods are compared. The result shows that it is better to turn off blackbody controller when it is very difficult to control blackbody temperature precision, and it is of significance for remote sensing application of infrared scanner.

针对该明暗条纹消除方法，介绍了常规的基于图像处理的&Laplacian噪声消除法&，并提出了一种新的解决方法&恒定参考源法&，通过对比这两种方法，认为在难以保证黑体控温精度的情况下，关闭黑体的温控功能是一种更好的解决方法，对于红外扫描仪的遥感应用具有一定的指导意义。

It is according to this model that standard radiant sources, here called the blackbody sources of the first kind, are built up in practise. In this paper, the concept of blackbody sources of the second kind is presented for the first time.

在集总参数下建立了联系第一类和第二类黑体辐射源物理模型的理论公式，并在此基础上论证了第一类和第二类黑体辐射源之间一致的内在联系。

Our laboratory has single-wavelength pyrometers, total radiation pyrometers and IR-thermometers. We have also a middle temperature blackbody, a low temperature blackbody, and a few standard lamps.

本实验室拥有单波长辐射高温计，辐射感温器和红外辐射温度计，以及校准用中温黑体炉，低温黑体空腔和标准温度灯等标准辐射源。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。