CT机床身移动测量-wire

       

目前先进的计算机断层扫描(CT)设备，持续改进着其诊断效率。而这必须依靠更为准确的测量系统（速度和分辨率兼顾）以及随之而来的费用问题。无论是螺旋CT还是双源CT，对测量系统的要求都在不断增加。

确切的说，测量系统需要满足水平位移以及倾斜位置的测量要求。为了得到更加清晰的被测器官图像，X光源的步进幅度需要变得越来越小。为了实现准确的3D测量，CT系统需要精确测量床身的位置。米铱公司提供的拉绳式传感器恰恰可以满足高分辨率以及长量程的需求，于此同时为客户提供了更为经济的解决方案。

In the latest CT equipment, the most effective diagnoses are determined by how precise and fast the measurement systems are (speed and resolution),
as well as their cost effectiveness.Irrespective of whether spiral, helical or dual source apparatus is used, the requirements are continuing to increase.
In particular, this also concerns the length measurement equipment for the horizontal reclined position. In order to obtain the best possible overall image of the target, the individual  X-ray  sections,  which  normally  travel  through the object, have to be measured with smaller and smaller spacing.  To  do  this,  the  sections  are  compiled  in  a  3D reconstruction  to  obtain  voxels  (volumetric  and  pixel). Based on this complete volume data set, any 3D views or sectional planes can be produced (see 3D image). In order to correctly assign the sections,

the horizontal position of the couch has to be measured precisely. Therefore, a measuring system with very high resolution and long measuring range is required.