斜射法 的英文怎麼說
中文拼音 [xiéshèfǎ]
斜射法
英文
angle beam method-
Ultrasonic angle beam examination by the contact method
接觸式超聲斜射探傷方法Abstract : according to the continuative condition of the tangential fields on the slot aperture which is the inclined narrow - slot on the broadwall of a sectoral waveguide, the moment method is used to calculate the magnetic current coefficient and distribution. then the scattering field, the scattering parameter and the equivalent impedance are obtained. leting only the te11 dominant mode propagates in the waveguide, the scattering parameters and the normalized equivalent series impedance in the x - band are computed. the basis disigned the slot antenna and the slot array is offered
文摘:根據縫隙口面切向場的連續條件,採用解析數值法矩量法,對扇面波導寬壁上窄的斜縫進行了計算,解得了磁流系數及其分佈,並得到散射場、等效散射參量及等效阻抗等重要參數.假定波導中僅有te11主模傳輸,在x波段計算了散射參量和歸一化等效串聯阻抗,給出計算結果,為縫隙天線和縫隙陣列設計提供了依據Through the theory of light radiation and intensity, we can use the fewest leds to satisfy the luminous intensity demand. through image segmentation theory, we can accurately pick module up from the test stripe when it is put in wrong directions. through image processing theory, we can acquire correct information and avoid the bad effects from the asymmetric chemistry reaction and instability of the devices
用光的輻射和強度理論,我們計算出了獲得足夠圖像強度所需的最少光源;用圖像分割理論,我們在試紙條傾斜放置或有垂直方向上的偏移時,準確地提取出了各模塊的數據;用平滑濾波和均值濾波理論,我們濾除了由於反應不均勻及硬體設備不穩定帶來的噪聲;用交遇區設計線性分類器的方法,我們降低了有限樣本設計線性分類器帶來的誤差,提高了檢驗準確度。The principle of measurement system is inclined trigonometry measurement principle and ccd is photoelectric transformation element
測量系統以斜射式光學三角法為測量原理,採用ccd作為光電轉換元件。Computing ellipse parameters of inclined axis measuring chart by imitating firing correspondence method
用仿射對應法確定斜軸測圖中的橢圓參數Employing the oblique projection shifting method, we have solved some graphic problem in descriptive geometry. it is very simple and fruitful to deal with difficult problems in orthographic drawing
摘要介紹了投影變換中的斜投射法及其在解決工程圖學一些問題中的應用。用這種方法可解決工程圖學中用正投影方法不便解決的圖示、圖解問題,而且具有應用范圍廣、作圖簡便的優點。Based on unsymmetrical heat environment, boresight error, boresight error slope and transmission coefficient of a specific shape radome have been calculated with indirect ray method
在不對稱熱環境的基礎上,採用間接射線法計算天線罩瞄準誤差、瞄準誤差斜率及功率傳輸系數。We present a calculation program in this paper, based on the physical optical theory ( po ) theary to predict bse and bses for a conical type of radome. the po theory is used to determine the ficticius currents electrical and magnetic on the inner face of the radome, which is illuminated directly by the radar antenna, and then use the transmission matrix mothod to determine the outer surface ficticion currents, the radiated from the antenna through radome is considered as the radiation field of these ficticion current
本文提出了一種基於物理光學理論預測正圓錐天線罩瞄準誤差及瞄準誤差斜率的計算程序。首先,雷達天線照射到天線罩內壁,應用物理光學法求出內壁等效的電流和磁流,其次,根據傳輸矩陣理論求出外壁等效電流和磁流,天線通過天線罩的遠區場即可認為是外壁等效電、磁流產生的場。Using field transformation ideas and split - field method to solve the difficulty of setting periodic boundary condition when excitation is abnormally incident, and founding time domain function for analysis of fss
採用場變換思想和場分裂方法,建立相應的時域迭代公式,解決了平面波斜入射情況下周期邊界條件設置中的困難。In the analysis of the frequent spectrum and the reflection coefficients, based on goda ' s two - points method which fit to the normal incident wave, a modified two - points method is derived that can be used to calculate the frequent spectrum and reflection coefficient of the oblique waves from which the frequent spectra of incident waves and reflected waves incoming in arbitrary angular, the bulk reflection coefficient and the frequent spectrum of reflection coefficient could be computed, also from which in theory the waves could be measured in two wave gauges which is disposed at any direction
為了分析單向不規則波入射波的頻率譜和反射系數,本文在goda用於分析正向不規則波的兩點法的基礎上,提出了可用於斜向不規則波頻譜分離及其反射系數計算的改進兩點法,該方法可用於計算任意波浪入射角的入、反射波譜、總體反射系數和反射系數的頻率譜,並且測量波浪過程的兩浪高儀可在較廣的方向范圍內布置。A new method of calculating the concentration distribution of radio - nuclides was proposed, in which the effect of gravity settlement, rain washing and the decay of the radioactive species re considered
利用傾斜煙團模式,考慮實際過程中核素粒子的重力沉降、雨洗作用以及放射性衰變等因素的影響,提出一種迅速估算放射性核素擴散濃度的方法。Products and systems for the protection and repair of concrete structures - test methods - determination of the adhesion of injection products, with or without thermal cycling - slant shear method
混凝土結構的保護和修理用產品和系統.試驗方法.帶或不帶熱循環的噴射產品粘結性測定.斜剪切法Difference iterative method is used to estimate numerically director configurations in the a - htn mode lc cell in this paper. according to the liquid crystal director configurations, the eo characteristic of lc cell for tilted incident light can be accurately calculated
文中利用差分迭代法計算了a - htn型液晶盒中指向矢分佈的計算,根據指向矢的分佈情況可以計算出斜入射光通過液晶盒后的透過率,並根據此來研究液晶盒的電光特性。Based on the sound wave transferring theory of infinite elastic and viscoelastic materials with the method of transferring matrix, the formulas of transmission coefficient and the level of sound insulation are gained, which consider shearing strength in the rubber, and the sound insulation properties of compound structures are discussed in condition of oblique incidence
摘要基於無限大彈性體和粘彈性體的波傳遞理論,採用傳遞矩陣的方法,對斜入射情況下的透射系數和隔聲量進行了理論推導,考慮了聲波在橡膠中傳播所產生的剪切力,並就單層復合結構的隔聲性能進行了詳細的研究,進而也分析了多層復合結構的隔聲性能。The radiation patterns at different scan angle from - 20 to 20 degree are presented, and the angle difference between the maximum / minimum field points of their main beam shows the bse of the radome. at different frequencies, the radiation from the antenna has been discussed when azimuth scan angle ranges between - 20 degree and 20 degree. the relationship between
200 ~ 200范圍內天線的和方向遠區場、方位差方向遠區場;得到方位瞄準誤差、瞄準誤差斜率和功率傳輸系數隨掃描角和入射波頻率的變化關系;並將所得數據與文獻數據進行比較,表明間接射線法簡單、有效且精度較高。Some valuable conclusions are summarized by theoretical analysis and simulation experiments : from the side of signal processing, pulse jamming can be deleted by the method of time - domain sliding window accumulation and can be restored by interpolative prediction. ; gauss white nose can be attenuated while jamming disperse point - target by the method of time - frequency analysis in time - frequency domain. ; radio frequency noise jamming can be deleted by the method of average range frequency spectrum and notching in frequency domain
通過大量的理論分析和模擬實驗,得到了一批具有一定價值的結論:從信號處理的角度出發,對于脈沖式干擾,能夠運用時域滑動窗口積累的方法去掉,並且通過預測插值得到較好的恢復;對于高斯白噪聲干擾,在時頻變換域內應用時頻分析方法可減小其對分散點目標的干擾;對于射頻噪聲,通過平均距離頻頻法和頻域陷波的方法可以去掉;從改變合成孔徑雷達系統角度出發,類似雙基地雷達能夠避免各種干擾,對發射信號進行調幅,調相以及改變調頻斜率都是較好的抗干擾方法。Solving the static correction problems under complex near - surface conditions is a systematic engineering. first, careful field weathering investigation must be done, then we have to take full advantages of refraction first - break information and field weathering investigation information to compute field static correction and large residual static corrections with various refraction first - break statics methods, finally, reflection statics methods are used iteratively to solve the residual statics problems. to solve serious static correction problems in complex near - surface areas of western china, different refraction first - break statics methods are studied in this thesis. the main study contents are as follows : 1 ) the propagation features of refraction for horizontal layered and dip media are studied firstly, it lays a good theoretical foundation for later statics method studies
本文針對目前西部油氣勘探中迫切需要解決的復雜地表區靜校正技術難題,對初至折射波解決二維和三維長、短波長靜校正問題的正反演方法進行了深入的研究和探討,研究內容主要包括( 1 )水平層狀和傾斜界面折射波的傳播規律,為后續的折射靜校正方法研究奠定理論基礎; ( 2 )二維復雜層狀介質地震折射波正演方法,該方法可適用於折射面起伏不大、低速層和折射層速度變化不大的情況。The outcome suggest that, firstly, the change of light transmission with the continuous change of parameters is periodic ; secondly, as far as the degree of effect is concerned, the light transmission of air - spaced prisms is much more sensitive to the change of the parameters than that of the glue spaced ones ; thirdly, as to the prisms glued with the same dielectric, the effect of prisms whose optical axis parallels to the glued layer is intense than those whose optical axis parallels to the plane determines by the normal of incident face and that of the cut face
研究認為,激光偏光棱鏡的光強透射比隨各參量的連續變化都呈現出一定的周期性;各參量對空氣隙型偏光棱鏡的影響要比對膠合型棱鏡的影響大的多;同種介質膠合的棱鏡,各參量對光軸平行於切割斜面的設計類型比光軸平行於切割面的法線和入射端面的法線所組成的平面的設計類型的影響要大。1. firstly, the mathematical model of fiber pair with the factors of reflector shape and inclination is established. then, the numerical simulation is fulfilled, along with a series of rules of the influence on intensity modulation property caused by multimode fiber parameters, the factors of reflector shape and inclination
然後,採用數值模擬的方法系統地研究了多模光纖參數(包括光纖對軸間距、光纖芯徑和光纖數值孔徑) 、反射面傾斜因子以及形狀因子對rim - fos強度調制特性的影響規律。Methods analyze on different characteristics among transverse wave, vertical wave and surface wave and apply, a slope method to judge the first - arriving - time
方法運用多波分析技術,通過分析超聲厚度檢測中橫波、直達縱波、反射縱波的不同傳輸特性,提出了斜率法判別反射波的起跳時間。分享友人