準直光線 的英文怎麼說
中文拼音 [zhǔnzhíguāngxiàn]
準直光線
英文
collimated ray- 準 : Ⅰ名詞1 (標準) standard; guideline; criterion; norm 2 (目標) aim; target Ⅱ動詞1 (依據; 依照)...
- 直 : Ⅰ形容詞1 (成直線的; 硬挺的) straight; stiff 2 (跟地面垂直的; 從上到下的; 從前到后的) erect; v...
- 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) ...
- 線 : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
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The collimated light goes through a 1 / 4 wave plate. this converts it into circularly polarized light
經過準直鏡校準后的光線射入四分之一波板。平行偏振光又被轉化為圓偏振光。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。At first, the author analyzed some chief factors such as light beam drift and atmospheric turbulence that affect the precision of the laser collimation in brief. then, the author studied the plan of the laser collimation generating nondiffracting beam and automatic level system with high precision. at last, the author completed the measurement of the straightness guideway by using ccd ( charge coupled device ) as the receiver and computer imaging processing
文章首先簡要地分析了激光自身漂移、大氣湍流等影響激光準直精度的主要因素,然後對系統的激光準直方案進行論證,並確定了無衍射光束的生成方案、高精度自動安平系統的結構方案,最後以ccd為接收器件,通過計算機圖像處理,完成對軌道直線性的測量。By means of the rectangular d iaphragm and two orthogonal cylinder lens, the collimated laser is shaped, which is stretched and compressed respectively in two different directions, and the l ine source with ideal shape is achieved
並應用矩形光闌和兩個相互垂直放置的柱面鏡,對準直后的激光束進行整形,分別在不同的方向進行拉伸和壓縮,得到了形狀理想的線光源。Presented four methods of laser collimation, realized 3 of them with the software of zemax, and meted the requirement of the system design ; 3. realized the laser beam expanding from point - laser to line - laser wide enough to cover the flange trackside ; 4. after image grabbing and processing, picked up the profile of the train wheel
作者獨立完成的工作包括: 1 、提出了曲面測量的光學系統的整體方案; 2 、提出了四種激光擴束的方案,用光學設計軟體zemax完成了其中三種的設計;經過像差分析和追跡,達到了準直擴束的要求; 3 、點光源到線光源的單方向擴展,達到了覆蓋輪緣踏面的要求; 4 、通過實驗採集圖像和圖像處理,提取出被測輪緣的輪廓。Through numerous experiment and analysis of scattering characteristic about fat and protein in milk, we find their characteristic about fat and protein in milk, we find their scattering law and establish the correlative scattering model of fat and protein in milk. especially, we adopt surface fitting to break through this problem from theory and technology, without isolating protein from milk, we can directly measure the protein in milk, that is to say, completely realizing the quickly accurate measurement of protein in milk. furthermore, we bring prosperity for the field of measuring multi - ingredient in milk through light scattering theory
經過大量實驗和對牛乳脂肪蛋白質的散射特性分析,我們找到了他們的散射規律,並建立了牛乳脂肪和蛋白質的關聯散射模型,並採用多元線性回歸的曲面擬合法徹底突破了這一難關,無需把蛋白質從牛乳中分離出來,可直接對牛乳這一復合體中的蛋白質進行測量,完全實現了快速而準確的牛乳蛋白質測試,為利用光散射原理同時測量牛乳多成份這一研究領域開辟了光明而廣闊的前途。The object of single photon emission computed tomography ( spect ) is to reconstruct an unknown radioactivity distribution inside the body from projection data consisting of the number of photon collected on a collimated gamma camera. these projections are not simple line integrals but have point - spreads due to the imperfect collimator of the detector and attenuation due to the compton scattering. so
這種投影數據與透射ct中的數據不同,由於存在著光子的點擴散(由準直器引起)和衰減(由散射引起) ,已經不能用簡單的線積分來描述這個問題,因此相對于透射ct而言,這個領域將面臨很多困難。By contrast with some foreign countries, such as usa, uk and so on, those countries had carried out new iso standard for a period of time, so they have developed special implements to measure those five errors, like 6d / lms created in usa. those implements have greatly improved the testing efficiency of machining center ' s geometric accuracy
而國外美英等國先於我國執行iso的新標準,他們已經研製了直線度誤差綜合檢測儀,如美國的api公司研製的6d lms激光干涉儀可同時檢測除傾斜一項的其他四項誤差,使檢測時間從2 ? 3天減為半天,極大地提高了生產效率。So adjusting the drift of laser beam and improving its directional stability, which is the key technology in the domain of the linear reference technology, demands to be solved
可見,抑制激光光束漂移,改善其方向穩定性是直線基準技術領域急需解決的關鍵技術。First, we can use a camera to take over the laser beam at one end, record the position of the light - spot, and calculate the centroid of the light - spot, then, move the laser on the guide rail. we should rectify the screw until the position of light - spot is unchangeable. then, the camera should be moved to the other end of the guide rail
先用攝像機在一端接收激光器發出的光斑,並記錄光斑的位置,求出其質心,然後在導軌上移動激光器,調節頂絲,直到攝像機上的光斑位置不動為止,然後將激光器移到導軌另一端,讓激光器在導軌上滑動,調節頂絲,直到攝像機上光斑位置不變,而且與前一次測試時的位置在誤差允許的范圍內,則認為激光器直線性校準完畢。The laser beam treated as a linear reference is used widely in the manufacture and measurement equipments, due to its many advantages, such as high brightness, good directivity, and good coherence etc. but the further improvement of the laser directional stability accuracy is restricted by some factors, such as the environment etc, which restrain the application greatly in the ultra - precision manufacture and measurement equipments
激光光束由於其亮度高、方向性好、相干性好等優點,常被作為直線基準廣泛應用於加工和測量設備中。但由於受環境狀態等因素的影響,制約了激光方向穩定精度的進一步提高,限制了激光在超精密加工和測量設備中的進一步應用。Abstract : a new non - contact measurement system of the ammunition energy is discussed, which can be used to measure the performance parameters of all kinds of ammunition chemical battery in non - contact means. as infra - red optical medium is applied to send signals in this system, the problems in the traditional measuring such as low - precision measurement, existing of the ac - dc boundary and the multi - factors arising thereform are overcome, and the noncontact measurement precision of the ammunition energy performance parameters is improved
文摘:論述一種彈載能源非接觸測量系統,適用於各型彈載化學電池性能參數的非接觸測量,該系統採用紅外光介質從電磁場中傳遞信號,克服了傳統測量方法精度低和「交直流界線」及其導致的「多系數」等問題,大大提高了彈載能源性能參數非接觸測量的準確度。The recovery can reach 95 % after it extracts once, rsd % is lower than 10 %, the detection limit of zirconium is 1. 3u. g / ml. and increasing the application of film in xrf is studied. the method of using organic sample to make resource after extracted by tta can be used to determine zirconium in simulated p rocess solution of spent fuel reprocessing quickly and veraciouly
萃取一次便可達到理想的萃取效果,回收率可達95 ,相對標準偏差10 ,鋯的檢出限為1 . 30 g / ml ,同時改進了薄膜法在x射線熒光光譜法中的應用范圍,此方法採用tta萃取分離的有機相直接制源可快速、準確地對測定purex模擬工藝料液中的鋯含量。In this thesis, we discuss mathematical programs with nonlinear complementarity constraints. because of the bad property of the equilibrium constraints, it is very difficult to study and solve it by the well - developed theory and methods for a standard smoothing nonlinear problems ( ssnp )
本學位論文討論的是帶非線性互補約束規劃問題,由於這類問題的約束條件的性質很差,直接使用求解標準的光滑非線性約束優化的方法和技術(如sqp )來求解,存在著一定的困難This text introduces a rotation method for the absolute testing of three optic flats, which is based on the photoelectric detecting technique, laser interference technique and image manipulation technique, it can solve the deviation on n diameters of each optic flat and enhance the accuracy
本文介紹的基於光電探測技術、激光干涉技術、圖像處理技術的帶旋轉三面互檢法可以解出平面上n條直徑線上的點的面形偏差,可以提高測量準確度。The methods of straightness measurement are mostly about a line, but the straightness of couple lasers is the mainly problem in the system. first the couple laser beams should be calibrated separately. then, the couple laser beams should be aligned, and it is the most important problem in the design
現在直線度的測量方法多數是對一條直線的直線度進行測量,本文所要解決的主要問題是兩束激光的直線性校準,首先要分別對兩束激光器的直線性校準,然後將兩束激光調到一條直線上,這也是設計中的重點問題。Experimental results show that the proposed method locates edges more precisely for noised images with straight edges
實驗表明,對于邊緣主要表現為直線而其他位置光滑的圖像,該檢測方法抗噪聲更強,定位更準確。Standard test method for determination of gaseous compounds by extractive direct interface fourier transform infrared spectroscopy
用可提取的直接界面傅里葉轉換紅外線光譜法測定氣態化合物的標準試驗方法The design of the laser and its bracket, neutral density filters, lens, and digital camera are complete in the hardware design ; the image collection and centroid calculation are complete in the software design ; and the experiment of straightness calibration is accomplished. the possible errors are analyzed about the whole system, and some methods to decrease the errors are put forward
硬體部分主要完成了激光器及其支架、衰減片組、透鏡組和數字相機的結構設計;軟體部分主要完成了圖像的採集和質心的求取;最後進行了直線性校準實驗,並對實驗過程進行了誤差分析,提出了減小誤差的方法。The linearity of laser beams is the guaranty of the whole system, to calibrate the linearity of laser beams is the primary problem in the paper
而指示激光器的直線性是整個測量系統的保證,本文所要解決的主要問題就是對激光器的直線性進行校準。分享友人