phase interference method 中文意思是什麼

phase interference method 解釋
相位干涉法
  • phase : n 1 形勢，局面，狀態；階級。2 方面，側面。3 【天文學】（月等的）變相，盈虧；【物、天】相，周相，...
  • interference : n. 1. 沖突，抵觸。2. 干涉，干預。3. 妨礙，打擾，阻礙物。4. 【物理學】干擾；干涉。
  • method : n 1 方法，方式；順序。2 （思想、言談上的）條理，規律，秩序。3 【生物學】分類法。4 〈M 〉【戲劇】...
  1. Secondly, in phase unwrapping to overcome the spread of wrong point, changing the patch of unwrapping phase is done to improve the correctness of it. then, the relation between the unwrapping phase and the height of reconstructed object is discussed detailedly. the data processing, algorithm analysis and reconstructing object are done for the collecting fringe image which are all based on matlab language, in all these achievements, the improvement and innovation aspect are following : a ) in order to stabilize the interference fringe, a new equivalent shifting object method is presented by using fringe stabilizing device to stabilize the interference fringe though moving object and ccd camera which fixed on a precise moving platform together, the experimental result shows the fringe drift is less than a / 20 in five minutes, and the equivalent phase shifting precision is x / 100

    論文在全面闡述了光學三維輪廓位相測量術的發展、應用現狀、研究熱點及未來發展趨勢的基礎上，簡要介紹了傅立葉變換和相移位相輪廓測量術的基本原理，對兩種測量方法存在的問題及誤差進行詳細分析和比較；針對位相解包裹錯誤點的傳播問題，作者通過改變解包裹路徑來提高位相解包裹的正確性；分析討論從解包裹位相（ x ， y ）到再現物體的高度h （ x ， y ）物理量之間的關系，研究相應的演算法，利用matlab平臺，對實際採集的條紋圖像進行處理和輪廓重構，其中改進及創新工作主要表現在以下兩個方面： （ a ）針對干涉型結構光場干涉條紋出現的漂移抖動對相移的影響，提出了一種用條紋穩定器穩定干涉條紋，用精密移動平臺使物體和ccd攝像頭同步移動實現等效相移的方法，建立了相應的測量系統，系統的條紋穩定可以達到。
  2. In this work, a new dual triangulate bluff body vortex flowmeter was developed, the flux lower limit value of which lower by 50 % that of the old single bluff body vortex flowmeter. the linear correlation of the correlation between the velocity pressures of fluid disturbs wave and that of vortex precession in vortex precession flowmeter was brought to light, and a spectrum phase discrimination method based on fft to remove the effect of fluid pulsating interference on vortex precession flowmeter was advanced

    研製出比傳統單鈍體渦街流量計流量下限降低約50的新型雙鈍體渦街流量計；揭示出脈動流中旋進旋渦流量計流體振動特性，並在此基礎上提出基於fft相位判別的數字信號處理方法來消除流場脈動對旋進旋渦流量計的干擾的方法。
  3. Because massive harmonic interference in the electrical network, it causes signal - sampling to include the very big harmonic in the measurement system, for eliminating measurement result influence by harmonic, the paper has an in - depth study of fourier transformation harmonics analysis measurement principle, analysis the forming reasons of frequency spectrum leakage and railing effect during measurement, achieves phase locked loop and frequency multiplier technique to realize integer - period synchronous sampling and eliminate impact of frequency spectrum leakage and railing effect in the result of measurement, and investigates in depth theory on phase locked loop and frequency multiplier technique, gives the method of realizing phase locked loop and frequency multiplier technique

    由於電網中存在大量的諧波干擾，導致測量系統中取樣信號也含有很大的諧波，為了消除諧波對測量結果的影響，論文深入研究了傅立葉變換諧波分析法的測量原理，分析了測量中頻譜泄漏和柵欄效應形成的原因，提出了採用鎖相環倍頻技術實現信號的整周期同步采樣，消除頻譜泄漏和柵欄效應對測量結果的影響，並對鎖相環倍頻技術的理論進行了深入研究，給出鎖相環倍頻技術的實現方法。
  4. The devices for detecting phase - to - ground fault in ineffectively grounded systems are seldom functionary at present. based on thousands of experiments in high - voltage laboratory in north china electric power university, the reasons for misjudgment and the effective measures to avoid it are presented in this paper : to change pt connection form to prevent from ill - effects of ferro - resonant overvoltage ; to increase soft measures to resist against interference ; to adopt neural network method to obtain the virtual value of the detect way

    依據上千次實驗，我們找到了一些導致選線誤判的影響因素，並提出幾點防止誤判的措施，包括改變pt接線方式，避免鐵磁諧振對選線的影響；通過對故障檢測方式的處理和使用連續判斷技術增強裝置的軟體抗干擾能力；嘗試採用神經網路演算法設定選線方法的有效域等。
  5. We build a close vibration compensation system which can successfully achieve the measurement of interference fringes movement and - vibration compensation. it puts forward pre - setting fill - in pulses method to implement phase shifting with the same pzt. with this new method, the interference fringe can be stabilized at any pre - setting phase position

    提出了填充脈沖數預設定的方法，可以將干涉條紋鎖定在任意設定的位相位置，實現了用pzt同時實現振動補償和移相測量；深入分析討論了pzt的延遲問題，創造性地提出了用多次逼近補償的辦法，給出了反饋補償的演算法，解決了補償過程中存在的系統不穩定和過補償的問題。
  6. In this paper, we analyzed the modulation of the interference intensity of each pixel on the time sequence speckle patterns in the time domain and proposed a new phase retrieve method, time sequence phase method ( tspm ), in which the time sequence speckle interferograms are used to obtain the whole field deformation of the object

    本論文通過對序列散斑圖上各點在時間軸上散斑強度調制函數的變化進行分析，提出了一種基於時間序列的散斑干涉場的相位解調方法，進而獲得物體全場變形信息。
  7. One novel non - linearity compensation method is proposed based on the parameters estimation of the discrete interference signals. the effectiveness of the compensation method considering phase - quarter errors, unequal amplitude and the dc components are simulated

    在研究干涉測量非線性誤差補償原理的基礎上，提出一種基於待檢偏測量信號參數估計原理的非線性誤差補償方法。
  8. Union with phase - shift moir interference method may obtain displacement information of any points around the hole, because the orthotropic materials does not occur pull - cut effect in the elastic principal direction, if some displacements of specific points are read, the residual stress value can calculated conveniently

    由於正交各向異性復合材料在彈性主方向不發生拉剪（或剪拉）耦合效應，所以通過適當讀取孔邊特殊點的位移，可方便地得到殘余應力值。
  9. The paper analyzed the basic theory and mathematic model of three phase voltage pwm inverter and proposed one kind of control strategy based on the voltage - current double - loop. it used the exterior loop to control the voltage the eps outputted, and used the inner loop to control the current. simulation testified that the control method could improve the dynamic response character and interference rejection ability

    在建立三相電壓型pwm逆變器在兩相同步旋轉坐標系下的數學模型的基礎上，提出了一種三相電壓型pwm逆變器基於電壓電流雙閉環的控制方法，利用電壓外環實現對輸出電壓的穩定控制，電流內環實現對輸出電流的控制，模擬證明該方法有效地改善了系統的動態響應及抗干擾能力。
  10. This affords theory argues for high ? resolution interference imaging technique. the phase screen method is used in simulation of laser beam transmit through turbulent medium

    本文研究了激光在湍流大氣中傳輸一段距離后的干涉情況，為光學高解析度干涉成像提供理論依據。
  11. Terrain slope information can be drawn from polarimetric synthetic aperture radar ( sar ) two - dimensional image, so that three - dimensional image can be generated. it differs from two - pass or repeated trace insar that uses interference phase method to obtain topography height. the p - sar three - dimensional image technology uses the stokes matrix formed by two - dimensional images resolution cells, then applying polarimetric synthesize to stokes matrix can produce polarization signature of the scatter cross - section a - (, x ) for any ( ellipticity ) and ( orientation ) polarization state

    這種方法不同於重復軌道和雙通道insar系統，不是利用干涉法提取高度信息，而是利用極化sar二維圖像各分辨單元的stokes矩陣，通過極化綜合估計每個分辨單元的共極化散射特性和交叉極化散射特性（極化指紋） ，以及共極化散射特性最大值時對應的極化橢圓度x利極化橢圓方向角，求解地形的高度輪廓。
  12. Phase - shift moir interference method and blind hole method were used to measure the residual stress of composite materials

    摘要本文應用相移雲紋干涉法與盲孔法相結合檢測纖維增強復合材料的殘余應力。
  13. In order to improve anti - interference performance, a two - phase matching method is adopted

    為了提高系統抗干擾能力，論文採用了二級匹配的方法。
  14. In this thesis, the general error sources for psi are analyzed. we find that the relatively low - frequency vibrations at 50hz and lower are the main problem through the analysis of the vibration sources in usual environment. a new vibration compensation method, phase modulating interference fringes fractionizing technology, has been put forward in a creative way

    本文分析了干涉測量技術中存在的主要誤差來源，通過對通常環境下振源特性的分析，得到了對干涉測試影響較大的振源的頻率范圍主要在30hz以下，確定了抗振補償的目標和技術指標是使干涉儀的振動頻率50hz ，振幅1 m 。
  15. The effects of multi - grating diffraction result in enhancement of the diffraction efficiency in two - beam interference experiments. with self - pumped phase - conjugate external cavity of ce : batio3 for the cw ti : sapphire laser, the frequency shift of the laser output due to the self - scanning effect was observed, which approve the possibility of the self - scanning tunable method

    同時位相共軛外腔還使得激光閡值由未加位相共軛腔時的4 . 7w下降到加位相共軛腔時的3 . 6w ，利用外腔理論對實驗結果進行了理論分析，理論計算結果和實驗結果基本符合。
  16. Recurring to rnathematic figure and examples and aiming at such questions as unbalanced current and induced voltage and high frequency interference, this paper has not only researched anti - jamming ability and measuring process of both three - electrode method and four - electrode method which are combined with reverse phase method, but also summarized actual measuring experiences

    通過數學推導和實例，圍繞消除地網不平衡電流、電壓極電流極引線問互感電壓、高頻干擾等問題，分析了三極法、四極法結合倒相法測量接地電阻的抗干擾能力和測量過程，並總結了實際測試經驗。
  17. The characteristic calculation method and interference of thin film are in charter there, we analyze the history and existing state of polarizing beam splitting prism. we deduce the basic macneille pbs equation, which are the refractive index match term and phase match term. at the same time, we calculate the refraction ratio of p polarizing light and s polariz

    在第三章中，介紹了薄膜偏光分束鏡的發展歷史和研究現狀，以及macneille薄膜偏光分束鏡的設計原理，即該設計應該滿足的折射率匹配條件和相位匹配條件；計算了中， c波長處p光和s光的反射率。
  18. According to the different require of the phase mask, the holographic recording method for the design of linearly chirped phase mask is studied in this paper. the fringe formed by the interference of two spherical waves, whose density varies linearly with space, is used to record the chirped phase mask. the two design schemes proposed in this paper are analyzed and compared, and the experimental results are given

    根據光纖光柵掩模的不同要求，研究討論了用全息干涉方法製作線性啁啾位相掩模的設計方法，提出用兩球面波干涉產生條紋密度隨空間距離線性變化的干涉條紋記錄啁啾位相光柵，分析比較了文中給出的兩種設計方案，給出了實驗驗證結果，並且製作了線性啁啾光刻膠掩模。
  19. The interference and its processing method of long sequence phase - modulation signal of multitargets in pulse compression are studied emphatically

    重點研究了長序列調相信號多目標對脈沖壓縮的相互影響及其處理方法。
  20. In chapter three, the importance of maintaining the equal optical path between measuring beam and reference beam in measuring horizontal and vertical vibration table are analyzed, and the factors having effect on contrast degree of interference fringe are introduced. for improving the accuracy of laser - vibration - measuring - system, the phase - modulation - multi - period - average method and the vibration isolated of system are analyzed

    第三章分析了光路設計中的等光程問題的重要性，以及影響干涉條紋對比度的相關因素；並從提高測量精度的角度分析了調相多周期平均法和系統的隔振。
分享友人
分享到 Line

分享到臉書