立式光度計 的英文怎麼說
中文拼音 [lìshìguāngdùjì]
立式光度計
英文
vertical photometer- 立 : 動1 (站) stand; remain in an erect position 2 (使豎立; 使物件的上端向上) erect; stand; set up...
- 式 : 名詞1 (樣式) type; style 2 (格式) pattern; form 3 (儀式; 典禮) ceremony; ritual 4 (自然科...
- 光 : Ⅰ名詞1 (照耀在物體上、使人能看見物體的一種物質) light; ray 2 (景物) scenery 3 (光彩; 榮譽) ...
- 度 : 度動詞[書面語] (推測; 估計) surmise; estimate
- 計 : Ⅰ動詞1 (計算) count; compute; calculate; number 2 (設想; 打算) plan; plot Ⅱ名詞1 (測量或計算...
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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。In this paper, the author combines the theory analysis with the experiment research method, and discusses the seismic behaviours, 3d elaborate finite element analysis and simplified model analysis of a kind of multi - function tall building - " sub - shearwall supported by frame ", which is applied widely today. the main contents are as follows : in order to observe the failure process and the earthquake response of the complex structure, and to analysis the seismic behaviour of the structural system and structural members, a 1 / 20 cement mortor model of a complex tall - building which is about to be built was producted and the shaking table test of this model under 26 sorts of earthquake loads was made. using sap2000 finite element analysis program, a 3d analysis model was built in computer, and the elastic time - history analysis of the model was done
本文採用理論分析和試驗研究相結合的方法,研究了目前應用較多的綜合性大廈? ?框支分區剪力墻高層商住樓的抗震性能及空間精細分析和簡化分析方法,主要內容為以下幾方面:對一擬建的復雜高層建築結構,採用1 20比例的空間整體模型,進行了26種工況下的模擬地震振動臺試驗,觀察了結構的破壞過程和地震反應,分析了結構及構件的抗震性能;建立了結構的精細空間模型,利用sap2000n大型有限元分析程序對結構進行了彈性時程分析;通過有限元分析與試驗結果的對比,對結構的抗震性能和抗震能力做出綜合評價,認為該結構由於轉換層上部去掉部分樓板,既可滿足建築設計的通風、採光等要求,又可達到協調結構轉換層上、下樓層抗側剛度的效果,是一種較理想的有多道抗震防線的結構型式。In the theoretical description of grazing emission fluorescence, the mode of fluorescence intensity emitted from layered materials dependence of grazing angle is established by applying asymptotic approximations to double fourier integrals, and the theoretic calculation formula of fluorescence intensity from a thin layer is derived. by the derived expressions, the theoretic simulation curves of several thin layers on si substrate are calculated. in the experimental setup, the requirement of construction of the setup and some important parameters are brought forward
最後,利用平穩位相方法建立了掠出射情況下薄層樣品產生的熒光強度和掠出射角的對應關系數學模型,推導了薄層樣品熒光強度理論計算公式,並以此為依據模擬計算得出了cr 、 fe 、 ti和ni等幾種以si作基底的單層薄膜樣品的熒光強度隨掠出射角變化的理論曲線。The blade inner channel cooling is a complex convection - conduction coupling problem. this thesis build a three - dimension. compressible turbulence model, and give a general solve method. with the geometrical model of the glossily rectangle straight channel, the rectangle straight channel with in - line arrays disturb plates, the rectangle straight channel with staggered arrays disturb plates, the rectangle straight channel with slant disturb plates, this thesis compute the flow and heat transfer condition when the cold air path though these channels, and gain the temperature field, pressure field, velocity filed, in addition. this thesis also analyze the influence of the different channel height, the different channel materials, the different channels, and gain the function relation between he nusselt number, friction factor and reynolds number. this thesis is emphasis on the new heat transfer enhancement structure, that is, disturb plates, with the comparison with the glossily channel and channel with pin fins, the heat transfer enhancement effect of the former is better, and the conclusion can be used in the design of aircraft blade
葉片內部通道冷卻是一個復雜的對流?導熱耦合傳熱問題,本文在分析葉片內部通道冷卻的流動與傳熱情況的基礎上,建立了三維、可壓縮紊流的物理模型,得到了通用的求解辦法;利用不帶擾流片的矩形直通道、帶順排擾流片矩形直通道、帶叉排擾流片、帶傾斜擾流片的矩形直通道的幾何模型,計算了冷卻空氣通過這幾種通道時的流動與換熱情況,得到了各種不同情況下計算區域的溫度場、壓力場、速度場;在此基礎上分析了不同的通道高度、不同的葉片通道材質對葉片內部通道冷卻的影響,並整理得到了各種通道形式下,努謝爾數和阻力因子與雷諾數的函數關系;本文重點研究了新型的葉片內部通道冷卻強化傳熱措施?帶擾流片的內部冷卻通道的強化傳熱效果,通過與光滑矩形直通道、帶針肋通道的冷卻效果的比較,表明了這種新型鮚構的優勢,對于葉片內部通道冷卻結構的設計可以起到指導的作用。Base on two - stage approach, we adjust experimental parameter to develop a new method ( three - stage approach ) to prepare c - bn thin films. the study proves that it is favorable to prepare bn thin films of high cubic phase content. depositing time and substrate bias voltage in the first stage are 5 min and - 180v respectively
根據si片上bn薄膜的反射光譜r ( )和熔融石英片上bn薄膜的反射光譜r ( )和透射光譜t ( )各自獨立的計算了bn薄膜的光學帶隙,利用兩種方法分別計算立方相含量均約為55 %的bn薄膜的禁帶寬度為5 . 38ev和5 . 4ev ,其結果均和由經驗公式計算得到的結果非常接近。In this paper, micro - cavity semiconductor laser ( mcsl ) with pillar vertical - cavity surface - emitting structure ( vcsel ) which has potential applications in optical communication and optical interconnect is theoretically analyzed, the calculation model that used to discuss the modal performance of rectangular columnar and cylinder vcsel with oxidized aperture is established by using vector field model. the numerical simulations in the case of cylinder structure show oscillating wavelength and threshold gain against inside and outside radius of laser, the layer refractive index and pair number of bragg mirror, thickness, position and oxidized material ' s refractive index of oxidized aperture, in detail. more practically, considering dos shell of laser as non - perfect one, or supposing that dos shell is separated from the laser, we can obtain more significative results
本工作以矢量場模型出發,對具有誘人應用前景的柱形垂直腔面發射結構( vcsel )的微腔半導體激光器( mcsl )進行了理論分析,建立了用於分析方柱形和圓柱形結構具有氧化孔徑層的激光器的模式特性的理論模型;對圓柱形結構情況進行了數值模擬,得到了振蕩波長、閾值增益隨激光器內外半徑、 bragg反射鏡層折射率、周期數以及氧化孔徑層厚度、位置和氧化物折射率的詳細變化規律;為使理論計算更接近實際,將外加金屬包殼視為非理想導體,或將金屬包殼與激光器結構隔開,分別對這兩種情況下的結果進行了討論。Analyzed the relationship between the cloud shortwave radiative forcing and the surface net radiative flux, the results were show by means of chart. the satellite grey values were get form the gms satellite data. analyzing the relationship between the cloud shortwave radiative forcing and the satellite grey values, established five regression equations and discussed them, select the best pattern, by which we can estimate the cloud shortwave radiative forcing
同時利用gms衛星紅外和可見光兩個通道的數字雲圖資料,經過處理,分別得出雲圖的灰度計數值,分析了短波雲輻射強迫和衛星計數值的關系,並運用回歸方法建立了估算短波雲輻射強迫的五種模式,對五種模式進一步討論比較,得到估算短波雲輻射強迫的可用模式,用於短波雲輻射強迫的估算。In the design of holographic disc storage system, we first proposed an optimized reflection configuration for sam fourier - transform hologram storage. then we designed and manufactured an asymmetrical fourier transform lens pair, which matched the parameters of slm and ccd and the system requirements. in order to achieve 1 : 1 pixel - matching of high resolution data pages ( 1024 768 ) between slm and ccd, the two lenses were designed and optimized in an iterative manner, and the combination of them reached satisfactory results with eliminated aberrations that can meet the design requirements
首先提出來用於反射式傅立葉變換體全息存儲的空間-角度復用的光路機構,然後按照slm和ccd的光學參數以及系統的工作要求提出傅立葉變換鏡頭的設計條件,為實現在1024 768幅面的1 : 1像素匹配,設計採用非對稱結構的傅立葉變換鏡頭,可以解決slm與ccd像素尺寸相差比較大的問題,使兩個鏡頭的焦距比同slm和ccd的像素尺寸比相等。Roughly acquire optical depth of clear sky and clouds from radiation station data and routine meteorological data of land surface, and the study the relationship between clouds " physical character and radiation. obtain the relationship between surface and near - ground atmosphere, and then according to this estimate surface albedo and surface net. by analyzing the relationship between satellite visible spectra, infrared spectra, and water vapor spectra values and radiation, by means of radiation transfer theory, analyze and deducethe relationship between clouds and radiation, and establish relationships between satellite value and global radiation and net
通過衛星雲圖的計數值來判斷雲對輻射的作用,以此建立起它們之間的關系;利用地面觀測資料和常規資料來粗略求取晴空大氣和雲光學厚度,進而研究雲的物理屬性與輻射關系;簡單的獲取地表與近地面大氣之間的輻射關系,以此估算地表的反照率,和地表的凈輻射;分析了衛星可見光、紅外及水汽雲圖計數值和地面輻射之間關系,利用輻射傳輸公式來推倒和分析雲對輻射的關系,試圖建立起衛星測值與地表總輻射和凈輻射之間的關系,並將晴空和有雲的個例分開,分別建立並選出最佳模式,以此來估算地表的凈輻射和總輻射。It preliminarily establishes a set of test theory and technical approach to wind tunnel test. specifically speaking, it includes following work : ( 1 ) theoretical analyses on key parameters of ao effect were made. from maxwell equation, the computation formula for focusing intensity of ordered disturbance and the computation formula for pulse peak intensity were derived
初步建立起了一套氣動光學風洞測試試驗的理論和技術,完成的主要研究工作有: ( 1 )從理論上進行了氣動光學主要參數的分析,從麥克斯韋方程出發,推導了有序擾動的聚焦強度的計算公式及脈沖峰值強度計算公式。( 2 ) base on the analysis of the atomizing principles of spray nozzle, mathematical model of combined spin - flow pressure spray drying was set up and the essential parameters such as spraying pressure, liquid quantity, temperature, spraying angle, inject distance, particle diameter and distribution, hollow diameter for several materials in normal conditions by experiment and ldv
( 2 )對旋流式組合壓力噴嘴噴射霧化機理加以分析,建立了旋流式噴嘴霧化的數學模型,採用冷態試驗法並藉助激光霧滴測試等實驗裝置對噴嘴的霧化參數(如霧化壓力、噴液量、料液溫度、霧化角、霧距、霧滴直徑和分佈以及噴嘴的空芯半徑等)進行測量和計算。The main idea of this research can be summed up as following words, reflecting light or scattering light upon the surface of measured object formats an image on the photo surface of psd by a optical system, because of the good relationship between the offset of image point in psd and the offset of object thickness, a mathematical model can be founded according to this relationship. it can measure the shift of object thickness through these analyses of movement of image point position in psd, and this device can be tested its reliability with many practical specimens
光學式非接觸厚度-微位移測量儀是在激光三角測量法的基礎上實現的,在本研究方案中,根據象點在psd上的移動量建立與被測物厚度-微位移變化之間的數學模型,通過對象點位置變化的計算,實現被測物厚度-微位移變化量的測量。本文重點闡述了光學式非接觸厚度-微位移測量儀的工作原理,並對測量儀的工作過程進行了分析;對影響測量精度的因素做了討論。A two stream model has been used to calculate the variation of optical depth and their effects to ultraviolet radiation of each extinction material. with the model, the relation among season, solar zenith angle and ultraviolet radiation has been discussed, and the variation of ultraviolet radiation under different clouds has also been studied. the comparative research of ultraviolet radiation among kunming, beijing and other abroad area at the same latitude has also been done
在已建立的計算昆明紫外輻射兩流模式改進的基礎上,進一步計算並討論了: 1各種消光物質的光學厚度變化規律及其對紫外輻射的影響2季節變化及太陽天頂角變化與紫外輻射的關系3不同雲的光學厚度下紫外輻射的變化4昆明與北京兩地模式計算結果比較,以及與國外相近緯度觀測結果進行了比較。In this paper, firstly, three - dimensional geometrical models of the target and ir flares are established and by using the software vega missile attacking process is real - time simulated visually. secondly, the ir radiation characteristic of the target, background and the ir flares are analyzed, in which the wave radiation of the sun at different time, wind speed, the relative humidity and ir radiation attenuation characteristic of the atmosphere is under consideration. from above the ir image of the target, ir flare and the background are got and then are normalized to gray color image that will be showed in a child window in real time
本文通過三維建模工具creator建立目標、背景和干擾的三維模型,再通過視景模擬軟體vega生成載機、導彈和目標飛機的可見光場景圖像,實時地對導彈攻擊工程進行可視化模擬;並分析了目標、背景和干擾的紅外輻射特性,計算出傳感器路徑上大氣衰減等等,將經過衰減的目標、背景和干擾的輻射強度量化為灰度圖,以子窗口形式實時顯示;進一步可以使目標和干擾按照各自的運動軌跡運動,便可產生動態的紅外熱圖像序列。The main results and creative points in the dissertation were as follows : a ) by means of studying on the fiber - optic hydrophones ’ tdm array based on phase generated carrier ( pgc ) demodulation with laser frequency modulation, the mathematic models were set up, used for theoretical analyses of noncoherent crosstalks in the system using low coherent laser and coherent crosstalks in the system using high coherent laser. the formulas calculating crosstalks were given, and the method measuring crosstalks was shown definitely
本論文的主要研究結果和創新在於: 1 、通過對基於光頻調制pgc (相位生成載波)解調光纖水聽器時分復用系統的研究,針對低相干光源的串擾強度迭加和高相干光源串擾的相干迭加,建立了理論分析的數學模型,得出了計算串擾的公式,明確了測試系統串擾的方法。In the temperature measurement, using a means of the optical fiber homochromous radiation temperature measurement, the mathematical model is created, and the temperature is monitored in real time. in the displacement measurement, the reflex mode method of displacement measurement of optical fiber is adopted. in order to eliminate the unstability of measurement system created by the illuminant receiving outside disturbance, the system designs referenced channel to assure the reliability of measurement and monitor the change of displacement in rea time
在溫度測量中,採用光纖單色輻射式溫度測量方法,建立數學模型,實時監控溫度的變化;在位移測量中採用光纖反射式位移測量方法,為消除光源受外界干擾給系統測量帶來的影響,系統設計了參考通道,以此保證測量的可靠性和高精度,實時監控位移的變化。The aims are to implement 1 : 1 pixel - matching of high resolution data pages ( 1024 768 ) between slm and ccd, and to design a compact holographic disc storage system with optimized optical and mechanical structure, thus, to help with putting the holographic data storage technology into practice. we reviewed first the fundamental theory on volume holography ( mainly the coupling - wave theory ), and the mechanism of holographic storage materials ( mainly photorefractive crystals and photopolymers ). based on the above fundamentals, the importance of fourier transform holograms for holographic storage is described
本論文從盤式體全息存儲的基本理論和相關技術出發,首先描述了光學體全息記錄的基本物理過程和耦合波理論;然後根據全息圖的類型特點,闡述了傅立葉變換全息光路作為體全息存儲器的光路系統的優點;同時對光學體全息存儲材料的存儲特性做了一些簡單的介紹;接下來討論了光學體全息體積復用存儲技術,最後對本論文工作應用到的空間-角度復用與盤式體全息存儲技術以及有關體全息存儲器光學設計的像差理論進行了詳細敘述。With reference to calculation methods of solar radiation within domestic and abroad literature and with the help of our country ' s dem ( with its resolution is 1 km x 1 km ), we build a new model for potential solar radiation calculation combining with pci geomatica ' s platform. in the calculation, hypothesis is that insofar one clear day in more than one year as the biggest value of solar radiation of one day in many years is defined as potential value of daily global solar radiation, we also consider the infection of the slope, aspect and its geometry relations affect on solar radiation. we calculate potential solar radiation which maybe useful for research the distribution of solar energy and build large - scale grid database of our country ' s solar radiation
本研究試圖在借鑒國內外已有的太陽輻射計算方法的基礎上,利用全國的1 : 100萬數字高程模型數據( grid大小1km 1km )為數據源,以pcigeomatica為計算平臺,以全國多年的太陽輻射日觀測數據進行模式驗證,在晴天無雲的理想條件下,根據太陽光線與實際地形間的幾何關系,研究坡度、坡向等地形因子對太陽輻射的影響,探討太陽輻射在復雜地表上的分配規律,力求尋找潛在太陽總輻射合理的計算方法,為研究太陽輻射時空分佈特徵和建立全國尺度的太陽輻射柵格氣象數據庫奠定基礎,為大尺度上的生態學過程研究提供基礎信息。分享友人