Product quality online detection X-ray apparatus

Abstract

The invention relates to a product quality online detection X-ray apparatus. The apparatus comprises: a distributed X-ray source having a plurality of targets and generating X rays for irradiating a detected product in a predetermined sequence from the plurality of targets; a detector used for receiving the X rays generated by the distributed X-ray source and outputting a signal for characterizing the characteristics of the received X rays; a transmission device positioned between the distributed X-ray source and the detector, bearing the detected product to go through an X-ray irradiation area, and arranged to be a continuous transmission structure matching with the production streamline of the detected product; and a power supply and control device used for supplying electric power to the product quality online detection X-ray apparatus, controlling the product quality online detection X-ray apparatus and forming the characteristic information of the detected product according to the signal from the detector.

Description

technical field [0001] The invention relates to a device for using X-rays to perform quality inspection on factory assembly line products, in particular to a device for using distributed X-ray sources to perform three-dimensional imaging inspection on assembly line products. Background technique [0002] X-ray sources are widely used in industrial non-destructive testing, safety inspection, medical diagnosis and treatment and other fields. Using the high penetrating ability of X-rays to perform perspective imaging on objects, the fine structure of objects can be analyzed, so as to achieve structural analysis, defect inspection, effect verification and other purposes, such as production quality inspection of products on the assembly line. Conventional X-ray sources have only one target point, ie, generate X-rays from only one location. A new type of X-ray source called a distributed X-ray source can generate X-rays at different locations within one X-ray source. [0003] In...

AI Technical Summary

Problems solved by technology

In some technologies, the tested product is rotated 360 degrees through an auxiliary device, and X-rays image the product continuously during the rotation process to achieve "all-round" detection, such as CN103644935A. Due to the need for positioning, rotation and continuous imaging of each product, The detection speed is slow, and it is difficult to match the production speed requirements of the assembly line

In some technologies, during the transmission movement of the inspected product, multiple perspective imaging is performed on the same product at different positions, and through "using translational cone beam CT iterative reconstruction based on sub-region averaging and total variation minimization Algorithm" to obtain three-dimensional images, such as CN102590248A, due to the limited effective viewing angle range relative to the X-ray source and detector during product movement, the obtained image quality "three-dimensional" effect is poor, and the efficiency is also low

There are also some technologies that use multiple X-ray sources to perform perspective imaging of the inspected product from different angles, such as CN202814895U. Although the effect of "all-round" detection is achieved, if the number of X-ray sources is small and the number of viewing angles is small, the image quality The omnidirectional effect is limited, increasing the number of X-ray sources can improve the image quality, but the cost will increase exponentially

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