波間干涉 的英文怎麼說
中文拼音 [bōjiāngānshè]
波間干涉
英文
interference of waves- 波 : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
- 間 : 間Ⅰ名詞1 (中間) between; among 2 (一定的空間或時間里) with a definite time or space 3 (一間...
- 干 : 干Ⅰ名詞1 (事物的主體或 重要部分) trunk; main part 2 (幹部的簡稱) short for cadre Ⅱ動詞1 (做...
- 涉 : Ⅰ動詞1 (徒步過水 泛指從水上經過; 渡) wade; ford 2 (經歷) go through ; experience 3 (牽涉) i...
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The one - half wavelength out of phase caused by the specimen itself enables this light to cause destructive interference with the direct light when both arrive at the intermediate image plane at the diaphragm of the eyepiece
這種由標本產生的半個波長的相位差的光線與直射光同時到達位於目鏡光欄的中間像面時會產生相消的干涉。According to the theory of scalar diffraction, first, the equipollence of spatial distribution of the plane - wave interferential field and parallel projective sine grating is discussed
摘要根據標量衍射理論,首先討論了兩平面波干涉場的空間分佈與平行投影正弦光柵的等價性。This multi - purpose optical metering system had adopted the twyman - green interferometric system as its center, containing an advanced digital wave surface interferometry and a kind of homodyne interferometer displacement testing method with nanometer - sized capacity. at the same time, many wide - applied metering technology, for example, the diffracted field ( fringe ) measurement, co - focal lens system, optical fiber sensors and 4f ( focal distance ) space filter system which can embody the chief principle of fourier optics well, were combined into it successfully. this instrument can firstly offer and show modern optical testing method in the laboratory for majors of information processing, instrument science, measuring and testing technology and automatic technology
該多功能激光光電實驗系統以泰曼-格林干涉( twyman - green )光路作核心,包括先進的數字波面干涉技術和一種基於空間干涉原理的、納米解析度零差干涉儀位移測量方法,同時將多種新穎、工程實用價值高的測量技術和光路如衍射測量、共焦顯微技術、光纖傳感技術以及反映傅立葉光學基本光學原理的4f空間濾波系統也組合進去。The simulation and experiments indicate that these two methods are simple, fast and accurate. a new optimal design of interleaves based on cascaded mach - zehnder interferometers is also presented. as compared with the two existing methods ( digital signal processing methods and fourier filters ), the present method is simple and intuitive
本論文分析了mach - zehnder干涉儀級聯形式之間的關系,提出了通帶平坦化分叉復用器的新型設計方法,與現有兩種方法(應用數字濾波器設計方法以及傅立葉展開法)相比較,本文提出的設計方法直觀、簡單。An interference field exists in space in the region where the two reflected waves are superimposed on each other.
兩個反射波相互重疊的空間出現一個干涉場。Propagation of cross - correlation function in divided - wavefront interferometry
分波前干涉法中空間互相關函數的傳輸Furthermore, the range of measurement of it was pointed out. all the analysis shows that our crsi 1il can be used to measure the spatial mid and low frequency wavefront distortion. 5. based on our crsi and algorithm, the phase modulation characteristic of an lcslm was measured
五、利用環路徑向剪切干涉儀共光路、雙光束干涉的特點,全場準確測量了液晶空間光調制器的位相調制特性,並且利用它的位相調制特性實現了臺階位相板畸變波前的補償,由此證明了液晶空間光調制器可用於控制波前畸變。Two spherical waves and multiple spherical waves interference, and yang ' s interference experiments are simulated by using different methods. two spherical waves interference is focused on the on - plane or out - plane of the spot light source plane and the observing plane. then, we analyze how the temporal coherence of optical waves influence the contrast of the interference pattern
用光波波前疊加的方法實現了對兩列球面波干涉、多光束干涉等實驗的模擬;用傳播矩陣描述衍射光波波前傳播的方法對楊氏雙縫和雙孔干涉實驗進行了模擬,並具體詳細地分析了單縫衍射對雙縫干涉的影響;另外還分析了光場的時間相干性對干涉條紋反襯度的影響。A cyclic radial shearing interferometer was used to diagnose the wavefront distortion of a laser system and an lcslm ( liquid crysnd spatial ligh modulator ) was used to control it. some results have been summarized as follows : l. according to the theory of scalar quanity diffeaction and the model of the random gaussian phase screen of low frequency wavefront, the effect of the low frequency wavefront with different rms gradient on the focal spot of a laser beam was studied
本論文在激光光束波前畸變檢測和控制上進行了新的探索,主要就空間相位調制環路徑向剪切干涉儀以及它對波前畸變的檢測和液晶空間光調制器及其對中頻段波前畸變的控制進行了研究,其研究的內容和取得的成果如下:一、根據標量衍射理論,結合低頻波前畸變的高斯隨機位相分佈模型,研究了不同均方根梯度低頻畸變波前對激光光束焦斑聚焦性的影響,並採用描述中頻段波前畸變的功率譜密度概念,模擬計算了它對激光焦斑旁瓣的貢獻。Gradually people began to make use of it actively to measure some physical quantities, thus self - mixing interference technology was brought forth. when a coherent light is scattered by the rough surface, the scatted light forms a granular intensity distribution known as speckle. speckles are coherent superposition of the light scatted by the rough surface
相干光從光學粗糙表面散射時,結果在探測面上出現隨機的顆粒狀的強度分佈,稱為散斑,散斑是由粗糙表面上各面元的散射光波之間的干涉在空間域內形成的,所以散斑也是粗糙表面一些信息的攜帶者。However, df pre - processing is not required in a interferometer direction finder. it only makes use of the phase relations or differences of sensors disposed at different position. azimuth and elevation are caculated from the phase differences or displayed directly on a crt drived by the voltage or current from the phase differences
干涉儀測向不必進行測向信號預處理而是直接或間接求取在空間上分開的傳感器上感應電勢之間的相位關系,即干涉相位差,方位角或仰角是直接由干涉相位差計算得到,或將兩基線正交的天線陣的干涉相位差轉化為驅動電壓(電流)分別加到crt陰極顯示器的垂直偏轉線圈和水平偏轉線圈,模擬顯示出來波方位,干涉儀測向為典型的相位測向方法。The contrast is higher, the amount of reflect becomes more ; and the sedimet is deeper, the shaking duration becomes longer. so. as the contrast higher and the depth deeper, more waves converge on the basin, more waves interfere with each other, the duration is longer, the amplitude of displacement or accelerate is larger, and the fourier responce spectra contain more components
所以,基巖與沉積層的剪切波速比越大,沉積層的深度越大,波就越容易聚集在盆地中,中國地震局工程力學研究所碩士論文波與波之間的干涉機會就越多,盆地的振動時間就越長,沉積層的位移和加速度反應就越大,波的頻譜成分就越豐富。Secondly, we propose and demonstrate experimentally a novel multi - wavelength erbium - doped fiber ring laser by using a mach - zehnder fiber interferometer and composite cavity. as a result, simultaneous multi - wavelength oscillations with narrow linewidth and equal wavelength span are obtained in room temperature. this device has advantageous of simple design fabrication and low cost et al
進一步,我們設計了一種新穎的多波長摻鉺光纖環形激光器,這種激光器是利用mach - zenhder ( m - z )光纖型干涉儀作為梳狀濾波器,並且與復合腔共同選頻,獲得了窄線寬、等間隔的多波長同時輸出,這種激光器具有在常溫工作,結構簡單,成本低等優點。7. based on our crsi and algorithm and double lcslm, an adaptive optical hardware system which c & n be used to model arbitrary complicated wavefront and the compensation of the wavefront can be accomplished was built. and according to the characteristic of a crs interferogram of a step wavefront produced by an lctv, the pixel - level calibration of this system is implemented
七、採用已建立的空間相位調制環路徑向剪切干涉儀及其波前重建演算法,和位相調制持性已知的兩塊液晶空間光調制器,創建了一套用於模擬產生任意畸變波前並加以檢測和反饋控制的自適應光學硬體系統,並通過臺階波前對該系統實現了像素級校準。On the basis of analyzing the output signal of a two wavelength beat - wave absolute distance interferometer, this paper proceeds from the realities of the aiming method of the beat - wave interferometer, conducts an analytical investigations on the dependence of the aiming accuracy of the beat - wave interferometer on laser dual - line output power equilibrium, propose two new concepts - a basic aim blind area and a blind area expansion, and establishes an analytical expression between the blind area expansion and the relative power difference of laser dual lines
本文從拍波干涉儀對準方法的實際出發,在分析雙譜線拍波干涉儀輸出信號的基礎上,研究了雙譜線功率不一致與拍波干涉儀對準精度的關系,提出了基本對準盲區和盲區擴大量的新概念,建立了描述盲區擴大量與雙譜線相對功率差之間關系的解析表達式。Collisional quantum interference takes place in radiationless transitions and is inherently the interference between de broglie waves. sha, zhang and co - workers [ j. chem
碰撞過程中量子干涉效應是分子碰撞導致的無輻射躍遷過程中的干涉,本質上是屬于德布羅意波之間的干涉。It shows that a disadvantag ekists when a crsi is used to measure a step structure in a wavefront, but it is useful to adjust a crsi system with lcslm. 4. according to the didriction effect of an aperture, the spatial resolution of our crsi was analyzed and the transform function of our crsi was calibrated by using the psd method of a step wavefront. and some factors which are associated with the accuracy of our crsi were analyzed too
四、從光學系統衍射效應的角度分析了本文建立的環路徑向剪切干涉儀的空間解析度,並利用波前功率譜密度的概念對該干涉儀的空間頻率響應特性進行了標定,分析了限制該干涉儀測量精度的主要因素以及徑向剪切比與測量精度的關系,並指出了該干涉儀的測量范圍,結果顯示該干涉儀基本上可用於準確測量中低頻段的波前畸變。The double - frequency laser interferometer belongs to the heterodyne interferometer. it has been proved that this kind of interferometer possesses the advantage of having a higher transform gain, better wave - filter capacity and high spatial resolution. furthermore, this kind of interferometer can filter out background light interference and obtain a measuring signal with high signal / noise ratio
雙頻激光干涉儀是一種外差干涉儀,理論分析證明:外差干涉具有高的轉換增益、良好的濾波性能及優異的空間鑒別能力,能有效地濾除各種背景光干擾,得到信噪比很高的測量信號。2. based on interoferometric technique, a parasitic interference configuration was introduced to transpose the wavelength - shift signal into phase - shift signal ; the strains were demodulated by measuring the phase change of the signal with a phase - meter
利用干涉技術,採用寄生干涉結構對傳感光柵的反射譜進行波長解碼,用相位計觀測波長漂移引起干涉儀兩臂間相位差的變化,進而監測作用在傳感光柵上的待測應變量。Chapter three studies the problem of interferometric phase images filtering and estimation, and details spin filtering with curve windows along the fringe tangent orientation and an estimation method based on the technique of joint space - image subspace projection
第三章研究了干涉相位的濾波和估計問題,重點研究了曲線窗口旋濾波演算法和子空間正交投影法。分享友人