
[力] 散斑幹涉法;斑紋幹涉學;斑紋幹涉測量術
Measuring heating stress of metal material at the welding points by using one beam laser speckle interferometry;
本文用單光束激光散斑幹涉法測量了内燃機連杆的變形。
This paper presents double graph dual-beam speckle interferometry, and the experiment shows an agreeable result with the theoretical analysis.
作者在本文中首次提出雙片雙光束散斑幹涉法,并成功地進行了實驗。
In this paper, the experiments for two kinds of glass fiber epoxy laminates is carried out by using speckle interferometry.
采用散斑幹涉法,對兩種鋪層方式的環氧基玻璃纖維層合闆的彈性模量、泊松比和應力-應變曲線進行了實驗研究。
This results provide the basis for analysing fringe quality of speckle interferometry.
這一結果為進一步分析散斑幹涉場條紋質量提供了依據。
Paper analyzed inconsistency between larger deforming and small measuring range, and analyzed measuring range match of laser holographic and speckle interferometry.
對實驗中遇到的大變形小量程矛盾、激光全息和散斑的量程匹配等問題進行了分析。
A new method of big shearing digital speckle interferometry is presented.
提出一種新的大錯位數字散斑幹涉術。
Both theory and experiments show that stroboscopic shearing speckle interferometry is obviously superior to time-average method.
理論和實驗都表明頻閃剪切散斑幹涉照相法要優于時間平均剪切散斑幹涉照相法。
The TV-Holography or electronic speckle interferometry (ESPI) method is adopted in the modal test of board-level package.
采用電視激光全息幹涉技術進行闆級封裝的模态實驗。
A new experimental method for measuring resonant frequencies of objects is proposed by use of rotating shearing stroboscopic speckle interferometry.
提出一種測量物體固有頻率的新方法———旋轉剪切頻閃散斑幹涉法。
In this report, the basic principle and methods of laser beam reflective holographic and speckle interferometry for studying the three-dimensional displacement fields are presented.
本文介紹了激光一束光反射式全息和激光散斑幹涉法基本原理,兩者結合分析三維位移場的基本方法。
Single beam Laser speckle interferometry has been used to measure the deformation of internal combustion engine connecting rod in this paper.
本文用單光束激光散斑幹涉法測量了内燃機連杆的變形。
The methods of laser holography and laser speckle interferometry have been used to study the correlations between rock or soil and structure.
采用激光全息攝影和激光散斑幹涉計量法,研究了岩、土和建築物之間的關系。
A laser schlieren-speckle interferometry system for diagnosticating the field of phase object, such as combustion, convection. free-jet, supersonic flow and plasmaetal, is proposed.
本文給出了診斷相位場,如燃燒、對流、自由射流、超聲速流場和等離子體等的一種激光紋影-散斑幹涉系統。
The principle of imaging system for laser electron shear speckle interferometry is presented.
介紹了激光電子剪切散斑幹涉成像系統的原理;
Micro speckle interferometry is employed to detect the deformation of the micro beam in the equilibrium and the experimental results are compared with the theoretical prediction.
最後應用微散斑幹涉,檢測粘附平衡态時微橋和微梁的粘附力以及由毛細粘附所導緻的彎曲變形,并與理論計算結果進行比較。
The application of image processing technique in speckle interferometry is stu***d and a speckle image correlation digital technique is presented in the paper.
研究圖像處理技術在散斑測量中的應用,提出了一種散斑圖像相關數字技術。
The theory of speckle interferometry is applied to study the measurement of the in-plane displacement of solid surface by laser Doppler effect.
本文采用散斑幹涉理論研究固體表面面内位移測量的激光多普勒效應方法。
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。
It has been explained that the relation between the speckle interferometry and the speckle shearing interferometry by using the theory of the movement of space speckle.
還利用散斑空間運動規律較好地解釋了散斑幹涉與散斑剪切幹涉之間的關系。
It is expected that the comprehensive application of holographic and speckle interferometry to the measurement of a 3-d displacement field would be an effective method for solving practical problems.
可以設想,全息幹涉法和散斑幹涉法的綜合應用将是測量物體三維位移場和解決實際問題的一種行之有效的方法。
The principle and structure of laser shearography and electronic speckle interferometry were introduced. Speckle pattern was disposed and analysed.
介紹了研制的激光電子剪切散斑幹涉成像系統的原理及結構組成,對散斑圖像進行了圖像處理分析。
In the field of optical deformation measurement, obtaining the fringe phase information from one speckle interferometry high accurately and automatically is a difficult problem.
在光測力學中,如何從單幅散斑幹涉條紋圖中高精度地自動提取方向信息是一項較困難的工作。
Laser speckle interferometry is a new technique in latter-day optics.
斑幹涉法是近代光學的一項新技術。
In this paper, an experimental investigation by laser speckle interferometry is carried out to determine the stress intensity factors for crack at the interface of bixma- terial.
文中采用激光散斑照相法确定了異彈模界面裂紋尖端的應力強度因子。
A new experimental technique on the CTE measurement of metal composite leads in electronic packaging using laser speckle interferometry was presented.
散斑幹涉或電子散斑幹涉計量應用于連續運動或變形物體時 ,就會産生一個時變的散斑幹涉場。
In this paper , the method of measuring the in-plane displacement field under an impact loading is proposed and is named dynamic digital speckle pattern interferometry.
利用數字散斑幹涉法,研究了半無限平面模型在受沖擊載荷下的面内位移場的測試技術。
In dynamic measurement field, when using digital speckle pattern interferometry, we always deal phase with time-average method and spatial carrier phase-shifting method.
在動态測試領域中,數字散斑幹涉技術常用到的相位處理方法有時間平均法和空間載波相移法。
散斑幹涉測量(speckle interferometry)是一種基于光學幹涉原理的高分辨率成像技術,主要用于天文學和精密光學測量領域。其核心原理是利用激光在粗糙表面反射或透射時形成的隨機散斑圖案(speckle pattern),通過短曝光成像和後期數據處理消除大氣湍流等因素引起的圖像失真。
該技術最早由法國天文學家Antoine Labeyrie于1970年提出,通過采集目标物體在毫秒級曝光時間内的大量散斑圖像,利用傅裡葉變換等算法提取相位信息,最終合成超越單次成像分辨率的清晰圖像。根據國際光學工程學會(SPIE)的公開研究,散斑幹涉測量可将地面望遠鏡的分辨率提升至理論衍射極限的2-5倍,顯著提高對雙星系統、恒星表面活動等天文現象的觀測精度。
在應用層面,該技術已發展出兩種主要分支:
目前歐洲南方天文台(ESO)的甚大望遠鏡(VLT)和美國NASA的哈勃空間望遠鏡均配備改進型散斑幹涉系統,相關技術細節可在《皇家天文學會月報》和《應用光學》期刊獲取最新研究成果。
Speckle Interferometry(散斑幹涉測量術) 是一種基于激光散斑現象的精密測量技術,主要用于檢測物體表面的微小形變、振動或位移。以下是詳細解釋:
詞義分解
技術原理
通過記錄物體在受力或形變前後的散斑圖案,利用幹涉原理對比兩幅圖像的相位變化,從而計算出物體的位移或應變。例如,頻閃剪切散斑幹涉術(Stroboscopic Shearing Speckle Interferometry)可用于動态形變分析()。
應用領域
技術發展
現代技術常結合數字信號處理(DSP)和計算機算法,實現散斑數據的快速采集與分析()。
該技術通過高靈敏度的光學手段,為微觀形變測量提供了非接觸式解決方案。更多應用案例可參考相關文獻或專業設備說明(如斑紋幹涉儀,)。
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