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1)  Scanning trajectories
扫描轨道
2)  circular orbit scan
圆轨道扫描
1.
Since FDK reconstruction algorithm with circular orbit scan mode based on cone beam can only be used when the cone angle is small,the field of view is too narrow to scan large objects,a new reconstruction algorithm of 3D-ICT based on cone beam-RT(rotation and transverse) scaning-mode is developed.
受探测器尺寸和重建锥角的限制,基于单圆轨道扫描和FDK算法的三维CT成像方法难以对大物体进行三维CT成像。
3)  circular orbit cone-beam scan
圆轨道锥束扫描
1.
FDK three-dimensional computed tomography(3D-CT) reconstruction algorithm for the circular orbit cone-beam scan with the point-shaped X-ray source is more widely accepted when compared with other types.
基于点X射线源圆轨道锥束扫描的FDK近似3D-CT重建算法重建速度快,在10°锥角内重建精度高,因此在工程上得到广泛应用。
2.
3D industrial computed tomography(3D-ICT) with circular orbit cone-beam scan mode based on Feldkamp Davis and Kress(FDK) reconstruction algorithm is considered more favorable for use than other processes.
基于FDK(Feldkamp,Davis and Kress)重建算法的圆轨道锥束扫描方式,因为算法的简洁性和工程实现的可行性,成为目前主要的三维工业计算机X射线断层摄影术(3D-ICT)成像技术。
4)  scanning track
扫描轨迹
1.
Control on electron beam scanning track in brazing;
扫描轨迹可控的电子束钎焊
2.
In order to use electron beam in brazing of precise structures and thermo-sensitive materials,accommodating every kinds of curve brazing seams,a vacuum electron beam brazing temperature closed loop control system was developed using PID controller,electron beam scanning track editing and on-line adjusting technologies,real-time acquisition and handling of brazing temperature.
为了将电子束应用于精密构件及热敏感性材料钎焊,以适应复杂形状曲线钎焊缝的要求,采用电子束扫描轨迹编辑及在线调节、钎焊温度实时采集及PID控制器构建真空电子束钎焊温度闭环控制系统。
3.
By means of the SEBB system,experiments of the structure of four capillary tubes to a plate were carried out with a four-leaf scanning track and PID control method of heating-up velocity.
开发了一个基于虚拟仪器的扫描电子束钎焊系统,采用四叶形扫描轨迹对四毛细管-板结构件进行钎焊,升温速度采用PID控制方法。
5)  scanning trace
扫描轨迹
1.
Analysis of the imaging characteristics and scanning traces of the 45° rotating scanning mirror;
45°镜多元探测器并扫成像特性和扫描轨迹分析
2.
Analysis for refractive property of rotary dual-wedge prism system and 2-D scanning trace
旋转双光楔折射特性与二维扫描轨迹的分析
3.
Based on the vector theory of optical reflection,the imaging characteristics and scanning traces of the two-axis pointing mirror are studied.
本文在光学矢量反射理论的基础上,对二维指向镜的成像特性进行了分析,给出了扫描轨迹的计算,指向镜摆动角度与视线角之间的关系。
6)  cross-track scanning
穿轨迹扫描
补充资料:扫描


扫描


  影像学术语。影像信息的采集和接收的过程。在成像过程中,采集至少重建一个图像的信息所需要的整套机械运动,称扫描。任何一种成像方式,在获得图像前要通过设备的机械运动完成信息的采集和检测,两者是同步进行的。依设备和应用范围不同,可有多种扫描形式和方法。
  
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