Loadable industrial CT (computed tomography) detection device

Abstract

The invention discloses a loadable industrial CT (computed tomography) detection device, belonging to the technical field of ray nondestructive detection. The detection device comprises a CT scanning device, a frame, a loadable test board, a control device, an image reconstruction device and the like. A ray source and a detector are fixed on a big circular ring; during CT scanning, a tested object is fixed on loadable test equipment and penetrates through the center of the circular ring, and then the circular ring on which the ray source and the detector are arranged is driven to perform precision rotary scanning. Compared with the existing devices, the CT detection device has the advantages that the tested object does not need to rotate and is in a continuously loaded state, and the ray source and the detector synchronously rotate around the tested object, so that CT scanning imaging of the tested object is realized; and non-rotation CT scanning imaging of the tested object and real-time detection in the continuously loaded state can be realized, and a structural evolution process of the tested object in the continuously loaded state is acquired.

Description

technical field [0001] The invention belongs to the technical field of radiation non-destructive testing, in particular to the technical field of computer tomography, and relates to a loading type industrial CT testing device. Background technique [0002] At present, industrial CT systems are mostly horizontal or vertical structures. A common feature of these systems is that the radiation source and detector are arranged on both sides of the detection object. During the scanning process, the radiation source and detector are fixed. Precise rotary motion on the rotary table. When the detection object rotates in the ray beam, the ray passing through the detection object is transmitted to the detector, and according to its intensity change, it reflects the integral (ie projection) of the material on the ray path in the detection object to the ray absorption coefficient, and the multi- The projection data under the angle of view can obtain the absorption coefficient distributi...

AI Technical Summary

Problems solved by technology

Invention patent CN101738403A provides an automatic loading system for industrial CT test benches. This invention designs an electric mechanical loading device and transmits command signals wirelessly, and still uses the traditional CT scanning method of rotating test objects. , the cable must be connected during the loading process, so it is still impossible to complete the real-time CT detection in the variable load state, but can only be loaded once and remove the cable for a CT scan, then connect the cable and load it again and remove the cable again for a CT scan Scanning, and so on; however, this method has made great progress compared with the traditional method, but the load bearing capacity of this mechanical device is also limited, in order to increase its load bearing capacity, the thickness of the metal shell must be thickened In order to increase the intensity, another problem brought about by this is that the penetrating ability of X-rays is also affected, and more energy is required to penetrate the loading device and test object

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