
[晶體] 強度分布;強度分析;亮度分布
A new method of improving the laser beam transverse intensity distribution measurement is presented.
提出了一種新的提高測量激光光束橫向強度分布的方法。
However in different longitudinal position, the intensity distribution of these rings is different and varies periodically.
而在不同縱向位置,這些同心環的強度分布是不同的,且是周期性變化的。
Description of satellite form effect with point spread function of satellite can calculate satellite reflected pulse intensity distribution in a simplified method.
用衛星的點擴展函數描述衛星形狀效應,能非常簡便地計算出被衛星反射後的脈沖強度分布。
With the intensity distribution function of Gaussian beam, the lateral and axial resolution expressions were deduced.
結合高斯光束的強度分布函數,推導了橫向與軸向分辨率的表達式。
The centroid position of the focal spot directly depending on intensity distribution and phase slope distribution of near field is derived and its physical meaning is described.
進一步推導了焦斑質心位置對光束近場強度分布和相位斜率分布的依賴關系式,并對該式清晰的物理意義進行了闡述。
The intensity distribution of three side-pumping light is analyzed inside laser crystal.
分析了激光晶體中三向側面抽運光的強度分布;
The paper introduces a new method for measuring the radial intensity distribution and the diameter of the Gaussian beam.
本文提出了一種測量高斯激光束徑向強度分布及束徑的新方法。
The numerical simulation results in this paper show that our model can rapidly compute the intensity distribution in different recoding planes in a storage medium.
實驗結果表明,該模型可以快速實現存儲介質内部不同記錄層面上雙光子記錄信號強度分布的仿真計算。
Infrared imaging acquires the image information from the intensity distribution of the infrared radiation.
紅外成像利用紅外輻射強度分布來獲取圖像信息。
Laser beam shifting, power stability and intensity distribution symmetry of laser spots are the main parameters affecting collimation accuracy.
激光光束的漂移,功率穩定性和激光光斑的強度分布對稱性是影響準直精度的主要參數。
Using a Hilbert transform Modulator, the intensity distribution of first-order spectrum of crossed-slit is used for accuracy positioning in practice.
本文運用希爾伯特變換空間調制器使十字光栅一級衍射譜的強度分布用于精密定位。
The state of electron is described by wave function. Intensity distribution of single slit electron diffraction is derived by probability distribution of electron momentum.
電子狀态用波函數描述,由電子動量的概率分布,得到電子單縫衍射的強度分布。
The electric field intensity distribution was acquired through potential gra***nt.
再通過電位梯度求得電場強度分布。
In addition, the scattering intensity distribution function of the karyocyte is acquired by fitting the scattering intensity distribution.
此外,對有核細胞光散射強度分布進行拟合,得到了有核細胞光散射強度分布函數。
The calculation result shows that multiline emission of uniform intensity distribution has been obtained using this model.
計算結果表明,在這個模型下獲得了強度分布均勻的多線運轉。
By means of trigonometric calculation, the intensity distribution of diffraction grating is obtained.
通過三角函數的計算,得到衍射光栅強度分布;
This paper provides an analysis of the intensity distribution of geomagnetic field, and the variation of the three elements of magnetic field with the change of locality and time.
分析地球磁場磁感應強度的分布、磁場的三要素隨着地理位置以及時間的變化情況,并對磁暴發生的特點、原因進行了探讨。
Structure reliability of the intermediate support spars are analysed according to the theory of stress intensity distribution interfere.
利用應力——強度分布幹涉理論,對中間支柱進行了結構可靠性分析;
Information rate of image can be calculated by information-theory when intensity distribution of an image is connected to its probability distribution.
用概率論解釋了圖像的強度分布,從而可以根據信息理論計算圖像信息量。
Equations of components, field properties and intensity distribution of the electromagnetic field of the annular waveguide are analyzed in detail with the theory of the electromagnetic field.
運用電磁場理論詳細分析了環狀波導管内電磁場各分量方程、模式特征及其強度分布。
In this paper, the intensity distribution of interference field of holo-speckle interferometry is derived when the error of system geometry exists.
本文導出了存在系統幾何偏差時全息一散斑幹涉術中幹涉場的強度分布。
The intensity gains comparing to flat monochromator and the neutron intensity distribution at sample position were also given.
計算和對比了使用聚焦單色器和平闆單色器的強度增益和樣品位置處的中子強度分布。
Based on the shape of the experimental setting and the laser intensity distribution, a computational model is established and a program is compiled.
根據實驗裝置的形狀和激光強度分布,建立了計算模型,編寫了計算程式。
With the wide spectrum of a multi- mode diode laser, the intensity distribution of its interference fringes can be used to find the zero OPD point.
它利用多模半導體激光器的光譜分布引起的幹涉條紋的強度分布來确定等光程差點。
Secondly, we expounds theory forecast of the sound field intensity distribution of batin acoustics and analysis the character of the signal that we collect at present.
接着,從聲學角度闡述對于蝙蝠聲場強度的分布特征的理論預測,從理論角度分析我們在現階段實驗中所要采集蝙蝠信號的特性。
The sign of the chirp also affects the spatial intensity distribution of the ultrashort hyperbolic secant pulsed beams.
啁啾系數的大小和符號對雙曲正割脈沖光束空間強度的分布有不同的影響。
|strength analysis;[晶體]強度分布;強度分析;亮度分布
強度分布(Intensity Distribution) 指物理量在空間、時間或頻譜等維度上的強度變化模式。該概念廣泛應用于物理學、工程學和信號處理領域,核心含義包含以下方面:
基礎定義
強度(Intensity)通常指單位面積、單位時間或單位頻率間隔内傳遞的能量、功率或粒子通量。例如,在光學中表示單位面積的光功率(W/m²),在聲學中表示單位面積的聲功率(W/m²)。分布(Distribution) 則描述該強度值如何隨位置、時間、頻率等變量變化。因此,“強度分布”本質是描述強度值在特定域内的函數關系。
數學表達與物理意義
強度分布常用函數或圖譜表示。例如:
$$
I(r) = I_0 expleft(-frac{2r}{w}right)
$$
其中 ( I_0 ) 為軸心強度,( w ) 為光束半徑(來源:國際标準化組織 ISO 11146 激光束參數測量标準)。
$$
B_lambda(lambda, T) = frac{2hc}{lambda} frac{1}{e^{hc/(lambda k_B T)} - 1}
$$
表征單位波長間隔的輻射強度(來源:美國國家标準與技術研究院 NIST 物理常數數據庫)。
典型應用場景
光學工程:激光束剖面強度分布影響加工精度(如高斯分布 vs. 平頂分布);
無線通信:信號強度空間分布用于基站覆蓋優化;
天文學:天體輻射強度分布揭示恒星結構或星系形态;
⚛️粒子物理:粒子束流強度分布決定碰撞實驗效率(來源:歐洲核子研究中心 CERN 加速器技術報告)。
權威參考來源(符合原則):
"intensity distribution" 是由兩個核心詞組成的專業術語,其含義需結合具體學科領域理解:
一、詞義解析
intensity(強度)
指物理量或狀态的強烈程度,在不同領域有具體含義:
distribution(分布)
描述事物在空間、時間或統計維度的散布狀态:
二、組合含義
該術語表示某種強度參數在特定維度上的分布特征,常見應用場景包括:
三、典型示例
在光纖通信領域,常用公式描述光強分布:
$$
I(r) = I_0 e^{-2r/w}
$$
其中$I_0$為光束中心強度,$w$為束腰半徑,$r$為徑向距離()。
擴展說明:該術語具有多學科交叉特性,具體含義需結合上下文。例如在醫學影像中可能指放射性強度分布,而在心理學實驗中可能指情緒強度的樣本分布()。
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