
[物] 條紋圖形,幹涉圖樣
The numerical display of the computer can yield better fringe pattern and measurement results.
計算機的數字顯示可産生較好的條紋圖樣和測量結果。
As with all interferometric methods, optical path length changes of the light waves are observed through interferometric fringe pattern analysis.
像所有的幹涉方法一樣,光波光程長度的變化通過幹涉儀的條紋圖樣來分析。
The noise sources and model in speckle photography fringe pattern is discussed and a noise filter for this model is designed.
本文讨論了散斑攝影條紋圖的噪聲來源及模型,設計合適的數字濾波器。
ATOS flowing optical scanner with the fringe pattern theory is a kind of advanced and non-contacted of equipment in reverse engineering.
Atos流動式光學掃描儀基于光栅原理,是逆向工程領域中一種先進的非接觸式光學掃描設備。
Phase-unwrapping is an unavoidable steps in optical measurement based on fringe pattern analysis.
位相展開問題是所有基于條紋分析的光學測量技術都難以避免的問題。
When Fourier transform is used to demodulate the modulated fringe pattern, the phase of deformation is calculated and furthermore the deformation is measured accurately.
利用傅裡葉變換法,解調出了變形場的相位,從而實現了物體變形場的精确測量。
A high quality of whole field speckle fringe pattern can be obtained and the point-by-point filtering method can also be used to analyse the deformation more accurately.
應用該技術可獲得優質的全場散斑條紋圖,并可用逐點濾波法進行精确定量分析。
In addition, several calculating formulas and experimental methods to determine the slope, the absolute fringe order and the fractional fringe order of the moire fringe pattern are given.
提出了斜率、雲紋絕對級數及非整數級雲紋補償的計算公式和實驗方法。
The arithmetic includes image preprocess(i. e. noise extraction of image), gray image binarization and fringe pattern sharpening.
算法包括圖像的預處理(即圖像的噪聲提取)、圖像的二值化及圖像的細化。
Theoretical analysis on optimum aperture functions, which could improve effects of filtering and the quality of fringe pattern is also made.
對最佳拍攝孔徑的設計作了探讨,認為采用適當分離的孔徑可以研善波效果,提高條紋的質量。
The fringe pattern generated by our method is of high contrast and has better quality than subtraction fringe. The new method is ****** and does not require more computational effort.
由我們方法獲得的條紋圖比減條紋有更高的對比度和更好的質量,新方法是簡單的,不需要複雜的計算。
In this work, an algorithm based on multichannel filters for speckle fringe pattern normalization is presented.
本文提出一種基于多通道濾波技術的散斑條紋圖正則化方法。
Besides, to the limited holographic interference fringe pattern which adds man-made phase changes, we can achieve a good quantitative data processing.
其次,對人為加入相位變化的有限全息幹涉條紋圖來說,可以很好地實現定量化數據處理;
The phase unwrapping process of fringe pattern can be achieved without any priori information or manual intervention.
該方法更充分利用條紋圖像信息,算法穩健,可以實現完全自動的二維位相展開。
The shape measuring of a diffuse abject is conducted based on 2-D digital image processing phase modulated fringe pattern acquired by the projection of Ronchi rulings.
對投影光栅方法獲得的位相調制空間載波圖進行二維數字圖象處理,實現了散射物體的三維曲面測量。
We test the new method on the computer-simulated fringe pattern and experimentally obtain the fringe pattern, and evaluate its filtering performance.
分别對計算機模拟的和實驗獲得的條紋圖進行了測試,并對濾波方法的性能進行了評價。
Some experimental results of the deformed fringe pattern, which is observed on certain system parameters condition, are presented. The results show some special …
本文還給出了在一定系統參數條件下,幾種特殊三維面形對空間結構光場調制的實驗結果。
There are two distinct methods in optical fiber sensor system for the observation of such fringe pattern and these can be identified as spectral domain processing, and phase domain processing.
這裡研究用兩種不同的方法在光纖傳感器系統來觀察這樣的條紋圖樣,即光譜域處理方法和相位域處理方法。
Each man took turns slowly pushing the stone, while continuously observing the fringe pattern.
每人輪流緩慢地推動石頭座使其旋轉,同時連續地觀察條紋圖樣。
This method has the characteristics that in addition to the sensing interferometer, a second processing interferometer is necessary to extract the required fringe pattern information.
該技術的特點是除了使用傳感幹涉儀以外,還必須用第二個處理幹涉儀來提取所需的條紋圖樣信息。
In this paper, a method is derived of photoelastic isochromatic fringe pattern for determination of mixed-mode stress-intensity factors.
本文導出一種用光彈性等色條紋圖确定混合型應力強度因子的方法。
Dynamic fringe pattern can be observed throughout the testing by real-time holographic interferometry, while the traditional method is only suitable for static fringe pattern in phase extracting.
實時全息幹涉法可以觀察記錄整個測試過程中條紋圖的動态變化,傳統相位提取算法隻適合于靜态幹涉條紋圖相位的提取。
There are noticeable errors at the border of the pattern when the traditional Fourier transform method (FTM) is used to evaluate the carrier fringe pattern.
針對傳統傅裡葉變換法處理光載波幹涉條紋圖時會有邊緣效應産生的問題。
The fringe pattern of differential Isodyne in various characteristic directions and planes can be real-timely taken, by using this system.
該系統可實時拍攝各種特征方向和特征平面的微分等達因條紋圖。
The noise of the blasting fringe pattern is reduced and quality is increased after processing by gradation modification, filtering and smoothness.
爆炸條紋圖經灰度修正、濾波、平滑後,噪聲有所減少,圖像質量增強。
"Fringe pattern"(幹涉條紋圖樣)是光學和工程測量領域中的專業術語,指由光的幹涉或衍射産生的明暗交替的周期性條紋結構。這類圖樣廣泛應用于精密測量、材料形變分析和光學檢測中。
當兩束相幹光波相遇時,會因相位差産生疊加增強或抵消的現象,形成穩定的明暗條紋。其數學表達式為: $$ Delta = 2dcostheta $$ 其中Δ為光程差,d為介質厚度,θ為入射角。當Δ滿足特定波長整數倍時出現明紋,半整數倍時呈現暗紋。
NASA在航天器熱防護層檢測中采用電子散斑幹涉技術,通過分析受熱形變産生的條紋圖樣,精确識别材料結構的微小裂紋(NASA技術報告NTRS-2020-03215)。
權威參考文獻:
“Fringe pattern”是由“fringe”和“pattern”組合而成的專業術語,其含義需結合兩部分理解:
1. 單詞分解
2. 組合含義 “Fringe pattern”專指由光幹涉、衍射或其他波動現象産生的條紋狀圖形,常見于光學測量和分析領域。例如:
3. 應用領域
如需更深入的物理原理(如條紋間距公式),可參考光學幹涉相關文獻。
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