严格实时同步的计算机断层扫描系统,用于周期性振动物体的原位三维分析

Václav Rada, Tomáš Fíla, Petr Zlámal, Petr Koudelka, Jan Šleichrt, Michael Macháček, Daniel Vavřík, Daniel Kytýř
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引用次数: 0

摘要

在贡献中,我们提出了一个能够对周期性移动或振荡物体进行x射线计算机断层扫描(XCT)的实验室系统。该系统是内部开发的XCT装置,电磁音圈执行器安装在装置的旋转台上。利用探测器硬件触发和硬实时Linux操作系统,实现了各部件、旋转工作台、电磁致动器运动和探测器读数的严格同步。用环氧树脂和金属颗粒制成的圆柱形样品,以实现运动跟踪,在固定位置和振动阶段引起的周期性运动期间进行扫描。对扫描的体积数据进行了比较,这一贡献的结果代表了通过原位谐波振动物体的模态分析来识别缺陷的重要一步。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Computed tomography system with strict real-time synchronization for in-situ 3D analysis of periodically vibrating objects
In the contribution, we present a laboratory system capable of X-ray computed tomography (XCT) scanning of an periodically moving or oscillating object. The system is an in-house developed XCT setup with electromagnetic voice coil actuator mounted on top of the rotary stage of the setup. The strict synchronization of the components, the rotary stage, the electromagnetic actuator movement and the detector readout is accomplished with use of the detector hardware trigger and hard real-time Linux operating system. Cylindrical sample manufactured from epoxy resin with metal particles to enable movement tracking is scanned in a stationary position and during periodical movement induced by the vibration stage. The volumetric data of the scans is compared and the results of this contribution represent an important step towards identification of defects through modal analysis of in-situ harmonically vibrating object.
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CiteScore
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