光度学是研究光强弱的学科。不同于辐射度量学,光度学把不同频率的辐射功率用光度函数加权;在天文学中,光度(luminosity)是物体每单位时间内辐射出的总能量,即辐射通量。
n. luminosity
所以当地球和月亮的中心大致在同一条直线上,L表示光度(Luminosity):12---74,例如月球海的可见程度,即夏历每月的十五或十六日,这时肉眼觉察 月食不到,其次是中国公元前1136年的月食记录。
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光度(Luminous intensity):通常,光源因它发光方向的不同,释放出的光通量有不同的光强度。光度是光源在特定方向上释放的能量的测量方式。
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太阳光模块测试装备的特征是Simulating Spectrum,其AM1.5、IEC60904-9 standard、光度(Light Intensity)是1000W/m2,,光度的非均衡性(Light Intensity Non-uniformity)是≤±2%,发光持续时间(Flash Duration)是5ms,可测Isc是≤10A,可...
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吸光度 [物化] absorbance ; OD ; Absorbency in ultra-voilet ; SUVA
光度学 [光] photometry ; Photometric ; photom ; photoptometry
屈光度 [光] diopter ; dioptry ; delta ; dioptric
发光度 [光] luminosity ; [光] luminous emittance ; [光] Luminance ; luminous intensity
太阳光度 solar luminosity
高光度蓝变星 luminous blue variable star ; LBV ; luminous blue variable
爱丁顿光度 [天] Eddington luminosity
光度函数 [光] [天] luminosity function ; PNLF
火焰光度检测器 FPD ; flame photometric detector ; PF FPD ; ECD
According to the lack that traditional registration only considers geometric factors, in order to overcome out its disadvantage, this paper puts forward a new improvement approach based on a combined affine model of geometry and photometry.
针对传统的配准只考虑几何因素的不足,提出一种基于几何和光度混合仿射模型的配准迭代算法。
参考来源 - 基于混合仿射模型配准的IBP超分辨率重建Photometric and colorimetric measurement,such as luminous flux measurement of all kinds of lamps,luminous density measurement in classrooms and color measure of color TV etc. are commonly used in daily manufacturing.
在日常的生产中,光度和色度的测量是很常见的,如各种灯的光通量测量,教室内照度测量,彩色电视机的颜色测量等等。
参考来源 - 便携式多用途光色测量仪的研究Extinction ratio,as one of primary optical parameters of polarizers,whose measurement belongs to the field of photometry measurement of weak light signal,and is totally different from the general photometric method.
消光比测量属于弱光信号光度学测量,其测试方法不同于一般的光度测量。
参考来源 - 高消光比测试系统中光电倍增管的偏振效应·2,447,543篇论文数据,部分数据来源于NoteExpress
然而,通过光谱学测量,宇宙中氦的数量表明,宇宙中重子的数量要比基于星系光度所估计的要多得多。
However, the amount of helium in the universe, as measured by spectroscopy, suggests that there are far more baryons in the universe than estimates based on galactic luminosity indicate.
当前我们对太阳光度的认知是:在地球的历史进程上,太阳光度应该是逐渐增加而不是减少的。
Our present understanding of the Sun's luminosity holds that it should have progressively increased, not decreased, over the course of Earth's history.
采用紫外分光光度法测定了芫荽籽中总黄酮的含量。
The flavonoids in Coriandrum seeds were determined by ultraviolet spectrophotometry.
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