beam scan 中文意思是什麼

beam scan 解釋
光束掃描
  • beam : n 1 梁，棟梁，桁條；（船的）橫梁。2 船幅；（動物、人的）體幅。3 （秤）桿，杠桿，（織機的）卷軸，...
  • scan : vt （ nn ）1 細看，細察；審視。2 〈口語〉大略一閱；瀏覽。3 按韻節念，按句調讀，標出（詩）的格律（...
  1. Vector scan electron beam system

    矢量掃描電子束裝置
  2. Diffraction theory for collinear dual beam z - scan

    掃描的衍射理論
  3. Lc apparatus almost meet all the needs of space optical communication such as weight, size, power consume, life, cost, driving voltage, intergration of optics and electricity, programe, optically take ? over aperture, beam scanning, deflexional range and so on. switches, deflexional facilities and scanning equipments which made with lc have been used in the system of labor in space communication. the only bug of lc apparatus is that their answer speed only get microsecond rate or submicrosecond rate. but it is practical for them to be used in special beam capture, scan, deflexion controling which don ’ t concerned with code rate and code type

    液晶器件幾乎滿足空間光通信的所有大的指標要求如重量、尺寸、功耗、壽命、成本、驅動電壓、光電集成、可編程性、光學接收孔徑、光束掃描和偏轉范圍等等。液晶光開關、光偏轉器、光掃描器已經開始應用於光纖通信的實驗系統中。液晶類器件應用於光通信的唯一重大缺陷，是其響應速度目前只能達到微秒級或亞微秒級，不過，在不涉及到碼型碼率的空間光束捕獲、掃描、偏轉、控制方面，液晶器件完全可能進入實用化。
  4. Vector scan electron beam lithography

    矢量掃描電子束光刻
  5. Abstract : in this paper ， a ray - optics analysis is performed to investigate the asymmetry of dual beam scanning field produced by a rotating polygon. some basic equations of dual beam scan are derived ， such as ， the position vector for the incident point ， the scalar expression for reflected ray ， scan pattern on observation plane ect. the far - field asymmetry of the scanning field has been discussed

    文摘:應用幾何光學理論研究了多光束轉鏡掃描場的非對稱性，導出多光束掃描入射點位置矢量、反射線標量表達式、觀察面上的掃描軌跡方程，並研究了掃描遠場的非對稱性。
  6. With compensation of signal ’ s time delay from different radiating element by phase shifters, phased - array antenna can control array beam easily. because there are no mechanical devices for rotating beam, the phased - array antenna system can scan everywhere in beam covered areas in millisecand by stepping the phase shifters. it improves the tracking velocity of antenna towards the object, and becomes the development trends of weapon system antennas

    相控陣天線利用移相器補償信號到達輻射單元時間的差異，從而控制波束方向;天線沒有機械旋轉問題，只需改變移相器的設定值，波束便可以在毫秒級內掃描其覆蓋空域內的任何地方，提高了天線對目標的跟蹤速度，是目前武器系統天線的發展方向。
  7. This paper regards narrow fan - beam scan mode as multi - detector parallel beam scan mode

    本論文將窄角扇束掃描看成是多探頭的平行束掃描。
  8. Its image reconstruction belongs to the image reconstruction under narrow fan - beam scan mode. after comparing different algorithms, this paper introduces convolution back projection algorithm for the parallel image reconstruction

    採用高能直線加速器作為射線源的高能x射線工業ct機多採用窄角扇束掃描方式，其圖像重建屬窄角扇束掃描方式下的圖像重建。
  9. The narrow fan - beams are reset into parallel beam then the image reconstruction is conducted by parallel beam " convolution back projection algorithm, which combines the high scan efficiency with the convenience of image reconstruction. this paper analyses the parallelism in narrow fan - beam " convolution back projection algorithm, divides the task of image reconstruction into several subtasks, and discusses the parallelization of narrow fan - beam " decomposition and reset, parallel beam " convolution back projection, and image accumulation

    對于窄角扇束掃描方式，把窄角扇束重排成平行束，再由平行束卷積反投影重建演算法來重建圖像，是把掃描的高效率和重建方式的簡便易行很好的結合起來。本論文對窄角扇束卷積反投影演算法進行了并行性分析，指出把圖像重建任務分解為多個子任務并行工作，並在工作站機群上討論了窄角扇束的分解、重排、平行束卷積反投影圖像重建、圖像合成的并行實現。
  10. The optical limiting properties nickel one - nuclear complexes hic22n4h24 solution under cw laser has been studied, as well as nonlinear properties under pulse laser have been studied by z - scan technique. three curves of peak followed by valley using the single beam z - scan technique were obtained

    我們不但研究了鎳單核配合物對連續光的限幅特性，還利用單光束z掃描技術研究了它們在脈沖激光作用下的非線性特性。
  11. 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。
  12. The following figures show the + / - 120 - degree coverage of the radar scan relative to your nose. the radar beam sweeps back and forth from your 8 o ' clock to your 4 o ' clock position

    下圖標明了雷達在機頭+ / - 120度掃描的覆蓋范圍。雷達波束在8點和4點之間來回掃描。
  13. The ultrasound diagnostic equipment using the technologies of digital scan conversion and digital beam forming is defined as the digital ultrasound diagnostic equipment

    採用數字掃描變換技術和數字聲束形成技術的超聲診斷設備被稱為全數字超聲診斷設備。
  14. By the advantage of high precision, strong anti - interference ability, long lifespan, etc, grating scale is the chief sensor in displacement measurement. however, as is restricted by the beam path structure, the scan frequency of the scaning circuit, etc, the maximum available measuring speed has a inverse proportion relationship to the measuring pace of a single grating scale

    光柵尺具有精度高、抗干擾能力強、壽命長等優點，成為微納米位移測量的主要工具，但由於受光路結構及信號檢測電路掃描頻率等因素的限制，單個光柵尺測量的最大允許移動速度與其測量步距成反比。
  15. The tungsten oxide films with catalyst by two methods were characterized by x - diffractometer, tunnel scan - atomic force microscope, ft - ir, double - beam uv - vis - nir spectrophotometer and speediness volt - ampere cycle meter. as results of x - diffractometer, pt / wo3 sputtered film samples are crystal when annealed at 400 with distinct diffractive acuti - apices

    本文分別用x衍射儀、隧道-原子力顯微鏡、傅立葉變換紅外光譜儀、雙束紫外可見分光光度計、快速伏安循環法等表徵了用以上兩種方法制備的三氧化鎢摻雜薄膜。
  16. Phased array radar is a detective system with multiple function, high reliability and adaptive ability, spatially the rapid scan and beam shape change characteristic of phased array antenna made its application more and more abroad

    相控陣雷達是一種具有多功能、高可靠性和自適應能力的探測系統，尤其是相控陣天線所具有的波束快速掃描能力和波束形狀快速變化能力等優點，使得相控陣雷達得到了越來越廣泛的應用。
  17. A directed energy beam would scan the area from above. inside the aircraft, a spectroscope would “ read ” the data and record where the bacteria around land mines is located

    定向能源束從上空掃描雷區，飛機裏面的分光鏡「讀出」數據，並記錄下地雷周圍細菌的具體位置。
  18. When x - ict detects large industrial parts and requires high resolving power, image reconstruction of x - ict has huge pixel matrix and the amount of calculation increases greatly resulting in much more time of image reconstruction. this paper proposes the parallel image reconstruction based on workstations cluster to solve fast image reconstruction of high power x - ict this paper presents the relevant basic theories and principles of ict and image reconstruction, including scan mode and image reconstruction algorithm. high power x - ict which adopts powerful beeline accelerator as radial source often uses narrow fan - beam scan mode

    工業ct機檢測對象為大型工業構件並且要求高解析度時，圖像重建的像素點陣巨大，計算量大大增加，從而圖像重建時間過長。本論文提出用在工作站機群上的多機并行工作的并行圖像重建解決高能x射線工業ct機的快速圖像重建問題。本論文介紹了工業ct和圖像重建的基本理論、基本原理等有關內容，包括掃描方式和圖像重建演算法。
  19. Mansoor sheik bahae introduced a high sensitive single - beam z - scan technique inl989. it requires relatively simple experimental apparatus and simple analysis. z - scan technique has been widely employed since it was reported

    Sheik - bahae等人提出了單光束z掃描技術，由於該方法具有實驗裝置簡單、結果易於分析、靈敏度高等優點，因此該方法一經提出便受到廣泛關注。
  20. Ultrasonic bio - instrumentation is a kind of diagnostic instrument widely used in the clinic presently. it can examine the body by the scan of ultrasonic beam and display it by the brightness of ultrasonic echoes and then form the profiles of viscera and pathological changes

    B型超聲診斷儀是目前在臨床中應用最廣的一種超聲圖象診斷裝置，它一般具有多種顯示方式，如b型、 m型等。
分享友人
分享到 Line

分享到臉書