aperture angle 中文意思是什麼
aperture angle
解釋
孔經角-
This paper analyses the critical angle method that often use in focus detected. we receive two relations, the first relation between refractive index of the critical - angle prism and focus - error signal ; the second relation between numerical aperture of object lens and out - of - focus error signal
本文針對伺服系統中常用的調焦方法-臨界角方法進行了分析，理論上得到臨界角棱鏡的折射率、物鏡的數值孔徑與離焦誤差信號的關系。 -
Through the special studies on impacts to atomizing and humidifying effect from such factors as the firing pin type, centrifugal structure, higher spraying pressure, less aperture, initial water temperature and original state of the air, some conclusions are obtained, such as : the centrifugal nozzle with firing pin type, high pressure and little aperture has bigger air eddy and atomizing angle. the spaying liquid has high velocity. the droplet is small, and the heat and mass transfer velocity is high
通過對撞針型結構、離心式結構、較高的噴水壓力、較小的噴嘴孔徑、噴水初溫及待加濕空氣初狀態對霧化加濕效果的作用原理的重點分析，得到：撞針型高壓小孔徑離心式噴嘴具有較大的空氣渦與霧化角，噴出的液體流速高、液滴小、水與空氣傳熱傳質速率高，撞針型結構提高了霧化加濕效率，高壓小孔徑的特點為霧化加濕提供了較大的能量，而噴水初溫的升高會減小水的粘性力和表面張力，從而優化加濕效果。 -
The numerical results show that a reasonable reconstruction is also possible for low wavenumbers even when the incidence and observation aperture is as small as the possible / 4 solid angle
數值結果表明，對較小的波數，即使當入射和觀測孔徑為/ 4立體角時，得到一個合理的重構也是可能的。 -
The parameters that influence the single photon acquisition probability are the transmitter ' s tracking - pointing error, the far - field divergence angle, the link distance between transmitter and receiver and the receiver ' s antenna aperture
得到影響單光子捕獲概率的主要參量是發射機的跟瞄誤差、光束遠場發散角、發射機和接收機的鏈路距離和接收機天線孔徑。 -
The position and size of the monochromator, focusing curvature radii and tilting angles of the germanium focusing monochromator under different different take - off angle, size and divergency of the second collimator and intensity loss due to the use of it were determined. the neutron flux at different wavelength, under different reflection and take - off angle of the monochromator and divergency of the first collimator, were given. the simulation on the aperture used for limiting beam size in front of the sample showed that, smaller the size of the aperture and further the distance from the aperture to the sample, greater the loss of the intensity and more serious the spread of the beam along vertical direction at the sample position which makes the practical sampling volume greater than expected
用蒙特卡羅模擬方法對中子應力衍射譜儀的設計方案進行了優化研究，提出了一系列可供參考的數據：確定了單色器的位置、尺寸、垂直聚焦單色器在不同起飛角下的聚焦曲率半徑和傾角；討論了第二準直器的尺寸和發散，以及使用第二準直器造成的強度損失；給出了在不同單色器反射面、起飛角、中子波長和第一準直器發散度的情況下樣品處的中子注量率，以及多種組合情況下譜儀的解析度曲線；對限束方孔的尺寸、距離樣品遠近對強度損失和測量中的影響做了深入研究。 -
And more aperture extension is achieved in this novel esprit - based two - dimensional angle estimatio n scheme using a uniform rectangular array of vector hydrophones spaced much farther apart than a half - wavelength. this proposed scheme and the attendant vector - hydrophone array outperform a uniform half - wavelength spaced pressure hydrophone array with the same aperture and slightly greater number of component hydrophones by an order of magnitude in estimation standard deviation
結合實際的應用情況，對矢量水聽器構成的陣列進行了初步的探討，利用本文前面部分所分析的基於單矢量水聽器的方法，實現了陣元間距突破半波長上限的局限，並解決了角度估計的循環模糊問題，以較小的硬體代價和運算代價實現陣列孔徑的擴展，提高估計精度。 -
In the experiment, we use the he - ne laser and the semiconductor laser as the source, record the bessel beam patterns behind the axicon by using a digital camera and a microscope, measure the radius of the bessel beam central spot by film - scanning and measure the effect of both the radius of the aperture and the open angle of the axicon on the maximum non - diffraction distance. the experiments show that a specific propagating range has constant power and the beam has a bessel - like distribution in this range. the results agree with the beam corresponding to a diffraction free beam
同時我們還採用膠片掃描的方法測量了無衍射光束的中心光斑尺寸，測量了不同光闌孔徑和不同稜角情況下的最大無衍射距離和傳播軸附近橫截面內微小光孔中的光強，實驗結果顯示當激光光束經過軸棱錐轉換後有一段距離功率變化很小，且分佈近似貝塞爾分佈，符合無衍射光束的特性;經過聚焦后，呈現三維分佈中空的光束bottlebeam ，實驗結果與理論分析基本吻合。 -
Illuminating aperture angle
照明孔徑角 -
Jinlong stone arts factory was set up in 1993, covering an arer of 2, 000 square meters, which is a private enter prise engage in processing stone crafts. the factory has advanced stone processing machine in producing arc slabs, columu head, coumn base, ro man column, stone border, stone patterning with water cutting kinfe, fountain ball and st one carving. by using the multi - function column making machine and infrared stone border profiling machine, the factoey can produce high quality products with perfect skills, including column, aperture linking of stone border, angle, arc angle, polish limit etc
金龍工藝廠創辦於1993年，廠房佔地面積2000多平方米，是一家從事石材工藝加工的企業，擁有加工圓弧板、柱頭、柱座、羅馬柱、石線、水刀藝術拼花、風水球、雕刻等先進的石材機械，採用多功能圓柱刨柱機，紅外線石線仿型機，以精細的石材加工工藝使圓柱、石線的拼逢、角度、圓弧度、光澤度等在加工質量有突破性飛躍。 -
Angle masters with various angles, prisms, corner cubes and lage aperture and high precision cemented plate
不同角度的標準角塊、棱鏡、角反射器（角錐棱鏡）及大口徑、高精度的光膠板。 -
As ttd ( true time delay ) is utilized in optically controlled phased array at sub - array level to replace the phase shifter in general phased array radar system, and make time delay compensation at sub - array level, which can reduce aperture effect considerably and make the broadband and wide - angle scanning of phased array antennas come true
由於光控相控陣雷達在子陣級上引入實時延時線ttd （ truetimedelay ）取代常規相控陣雷達中的移相器進行子陣級的延時補償，大大減輕了孔徑效應，使相控陣雷達實現了寬帶寬角掃描。 -
Shoot in aperture preferred mode with the lens set to wide angle and choose the smallest aperture
在大角度鏡頭的光圈下，進行拍攝，光圈要最小。 -
Aiming at the problem of angle motion estimation in monopulse three - dimension imaging, a novel angle motion parameters estimation method based on the inverse synthetic aperture radar imaging for difference beam is presented
摘要針對單脈沖三維成像時的目標角運動估計問題，提出一種基於差波束逆合成孔徑雷達成像的新的角運動參數估計方法。 -
Priority 4 - for abstracts, sharp throughout the frame from wide angle to telephoto with the aperture stopped down ( f / 8 or smaller )
優先權4 -為摘要，鋒利在框架過程中從廣角對遠距照相與開口被停止下來（ f / 8或更小） 。 -
It is used in conventional real aperture radar for improving angle resolution. numerical and experimental results show that by using awsm. the angular resolution is improved by a factor of 1. 8 when signal - to - noise ratio equals to 15db
實驗結果表明，在15db的信噪比下，採用角度權重方位超分辨技術可以使方位解析度的改善因子達到1 . 8以上。
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