點光式 的英文怎麼說
中文拼音 [diǎnguāngshì]
點光式
英文
point light type-
Compared with traditional contact flow measurement methods, presents the non - contact flow measurement methods, and emphases the application of laser doppler anemometry ( lda ) and particle image velocimetry ( piv ) to flow field measurement
摘要與傳統接觸式流量測試方法相比較,介紹了非接觸式流量測試方法,重點介紹了激光多普勒技術( lda )和粒子圖像測試技術( piv )在流場測試中運用的原理。Equal channel angular processing of the pearlitic steel ( 0. 65 wt. % c ) was successfully carried out at 650 with route c in this study, obtaining a total equivalent true strain ~ 5. the microstructure evolution of pearlitic steel in ecap was investigated by means of transmission electron microscope and scanning electron microscope. the main results are as the following : 1
本研究成功地實現了c方式650珠光體鋼65mnecap變形,累積等效真應變達到5 。並用透射電鏡、掃描電鏡研究了珠光體組織的演變特點和滲碳體的變形。主要結果如下: 1The innovat ions of this thesis are as follow : by using dots marking method we achieve high on - line marking, and we design the accurate orientation project, the high scan project, and the step scan project, each of them can be applied for different marking requirement the main contents of thesis are as follows : 1 the development of laser industry, the prospect and technically advantage of laser marking is reviewed
本文的創新之處為,採用點陣式標記方法實現了高速在線打標功能,並分別設計了精確定位方案、快速掃描方案和分步掃描方案三種不同的打標方案,可適用於不同的在線打標要求。主要內容如下: 1 、分析了國內外激光加工業特別是激光打標機及其市場現狀、發展趨勢和市場前景等。For the hyper accuracy interpolation technique, which resolves the accuracy limitation of pixel physical size, derives out the star spot interpolation accuracy limitation based on the star spot mathematical model and photoelectric statistics
針對克服像元尺寸對測量精度限制的超精度內插細分技術,在建立了星點光斑數學模型的基礎上,利用光電統計理論,推導了星點光斑內插細分精度的極限公式。If we could make use of the technology of computer seeing and realize automatic recognition of identifying id card numbers, we should greatly improve the efficiency of id card administration. presently, most recognition systems of id card numbers are based on scanner, but this systems cannot meet the demand of long and real time catching image. this text lucubrates theoretic about image manipulation and pattern recognition and sets up a integrated regnition system of identifying id card numbers. on ccd vedic. concretery consist : ( 1 ) firstly investigating the segmentation about image of illumination asymmetry. due to a dotal lamp - house, the illumination of id card numbers image is asymmetrical
本文應用了圖像處理和模式識別技術,建立了基於攝像頭的身份證號碼的識別系統。主要研究內容具體包括如下: ( 1 )研究了亮度不均勻的身份證號碼圖像的分割。由於採用點光源進行局部照射,導致身份證號碼圖像的亮度不均勻,因此直接對圖像採用全局閾值進行分割不能有效地分離號碼體。Kohler illumination was used in proximity lithography, and a fly ' s eye lens was adopted to form multi - point source in order to uniform the light intensity on the mask plane
摘要接近式光刻中一般採用柯勒照明系統,並採用蠅眼透鏡形成多點光源均勻掩模面的光場分佈。Synchronous pulse generating circuit : got by back panel output 1pps 、 1ppm 、 1pph synchronous pulse signal. pulse is photoelectric isolation static idle contact form output
同步脈沖發生電路:通過後面板輸出秒( 1pps ) 、分( 1ppm ) 、時( 1pph )同步脈沖信號。脈沖是光電隔離的靜態空接點形式輸出。Based on the characteristics of fire in high - rise buildings, the papers introduces the work principle of scatter photoelectric style fire explorer, discusses the work courses of automatic alarm, and analyzed that the sense smoke explorer system with prolonged work procedure is much more reliable than that without prolonged work procedure in the fire automatic alarm. whats more the computer program graph for auto - alarm system is also worked out. 4figs. , 5refs
依據高層建築火災性質和特點,介紹了高層建築中用散射光式光電感煙檢測器檢測火災的工作原理,討論了自動控制報警的工作過程.分析比較了設有延時工作過程的感煙探測系統比沒有延時工作過程的系統,火災報警的可靠性大大增強.並編制了自動報警系統計算機程序框圖,本文討論的高層建築中火災的探測與自控研究,對于不同建築結構和不同要求的火災控制報警系統具有參考價值和社會經濟意義.圖5 .參5Shannon entropy function is used to smoothing it. a non - interior predictor - corrector continuation method is built for a class of mixed complementarity problems
基於非線性互補問題的一個等價不動點格式,第五章分別用shannon熵函數和kullback熵函數光滑化max函數。The conclusions are as follows : the ultrasonic intensity is proportion to the laser intensity ; the ultrasonic induced by a laser line source has much more advantages than by a laser point source, such as stronger energy, higher snr, more directivity and shape ; the intensity of cfpi ' s output signal is linear with ultrasonic vibration velocity, and is effected by incidence angle and scattered angle ; snr will increase by reducing cfpi ' s bandwidth, reducing incidence angle, increasing cavity ' s length and reflectivity
在分析點光源激勵聲表面波機理的基礎上,求出了線光源激勵的超聲振動的位移表達式,發現線光源激勵的近場區表面波具有波形好,信噪比高,指向性好,幅度強等特點。通過理論推導,得出共焦fabry - perot干涉儀的輸出光強除了與樣品表面的振動速度成正比,並與入射角和散射角有關;適當減小cfpi的帶寬,增加腔長,增大鏡面反射率,或者減小檢測入射角都可以提高系統的信噪比。Based on the principle of light - pen mode non - track three dimensional coordinate measuring technology, the paper uses psd as the photoelectric receiver and point light modulated by frequency to measure coordinates
本文通過對光筆式無導軌三坐標測量的研究、提出了以psd ( positionsensitivedetectors ,位置檢測傳感器)作為光電接收傳感器,用高頻調制光作為點光源,進行位置坐標測量的新思路,以提高整機的精度。This paper study the supporting system structural behavior node form and construction process of glass roof for promoting the research and application of it
本文重點對採光頂的支承結構體系、支承結構的受力性能、採光頂中節點形式及施工過程進行研究,以期推動玻璃採光頂的理論研究與工程應用。Glass roof is used insome roof of buildings. but there are a lot of technological difficult problems demanding prompt solution. the technology of dot point glass roof will be perfect gradually through further theoretical research and project being practised
點支式玻璃採光頂也在一些建築屋蓋中得到運用,但尚有許多技術難題亟待解決,點式玻璃採光頂技術必將通過進一步的理論研究與工程實踐而逐漸完善。The form of the psf has been deduced according to the fresnel diffraction, and it has been analyzed that the frings density of the psf depends on the axicon ' s refracting angle and the distance l between the point light source to lens l2
利用菲涅耳衍射理論,推導出相干光照明下無衍射系統的點擴散函數( psf )的形式,並分析出點擴散函數的條紋疏密與錐鏡的夾角和點光源的位置有關。Compared with the results based on hopkins theory, the fast computer simulation results show that the diffraction intensity in proximity lithography may be simulated more rapidly and precisely with the new model
結果表明採用基爾霍夫衍射理論及多點光源的衍射光場非相干疊加的模型不僅快速而且也可以比較準確地模擬接近式光刻的衍射光場分佈。Using the 2 - dimension numerical control machining flat and dual galvanometer scanning system is to enlarge marking scope and to make up the shortcoming of slow marking velocity of immovable mode and deficiency of small marking scope of movable mode. this method is fit for the situation of larger scope, which improves produce efficiency
本系統選用二維數控加工平臺結合雙振鏡掃描系統,擴大打標范圍,彌補了定光式打標速度慢的缺點和動光式打標范圍小的不足,適用於打標圖形較大的場合,提高生產效率。The cone produces light of two degrees of intensity, with a central brightly lit section that acts as a point source, and a surrounding dimly lit section
其產生兩度光強,一度照明中心部分,其形式有點類似於點光源,而另一度則在周圍形成朦朧光。Their limiting characteristic, however, is that they require large - scale capital investments in hardware
去除這兩種模式以外,觀光式的文化節慶是許多區域發展觀光的阿基米德點。Second, a parallel adaptive ray - casting algorithm for graphic rendering of cfi is developed. in the computational model of cfi, the line - of - sight integration is difficult to obtain for 3d complicated flow field, because curvilinear grids, multizone curvilinear grids, and other irregular grids that are commonly used in computational fluid dynamics ( cfd ) present interesting challenges, such as the complex shapes of cell regions defined by grid points ; the wide variation in the sizes of cells in different regions of the grid ; and the intersecting or overlapping nature of multi - grids. the parallel adaptive ray - casting algorithm is extremely efficient to solve these problems
并行自適應光線投射法繼承了光線投射法適合於任何形式網格的優點;光線與計算網格的交點自適應地反映了原來網格點物理量的分佈,能夠與數值計算的精度保持一致;圖像平面的自適應演算法使我們不必從每一個像素發出射線,既提高了光線投射法的計算效率,同時又保證重采樣后激波這樣的高頻信息不會損失;將并行處理技術引入計算光學流動圖像生成過程,解決了大規模數值模擬結果的處理對計算速度和內存容量的需求。The topic we have tackled are as the following, ( 1 ) numerical simulation for light propagation and visualization of light - field distribution of fresnal diffraction and fraunhofer diffraction with ( 2 ) computation and display of hologram by method of simulation - anneal ( 3 ) hologram computation of a point source based on method of interference hologram computation
論文中具體完成了以下工作: 1 、對光的傳播特性進行了數值模擬,以可視化方式表現了菲涅耳衍射和夫瑯禾費衍射的光場分佈。 2 、用模擬退火演算法實現了全息圖的計算及顯示。 3 、在基於干涉全息圖的計算方法上,計算了一個點光源的干涉全息圖和相位分佈。分享友人