Industrial CT scanner synchronous loading test apparatus and industrial CT scanner

Abstract

The invention relates to an industrial CT scanner synchronous loading test apparatus and an industrial CT scanner, and belongs to the field of test detection equipment. The apparatus comprises a single-acting rotating loading oil cylinder, a see-through carbon fiber counterforce frame, a micro-torque rotating mechanism, an oil pressure loading system and a pressure display system; the single-acting rotating loading oil cylinder comprises an oil cylinder body and a rotary oil receiving hole which can conduct relative rotation with the oil cylinder body, the see-through carbon fiber counterforce frame comprises an upper connecting box and a lower connecting plate, as well as a carbon fiber support wound between the upper connecting box and the lower connecting plate, and a test piece is positioned between the upper connecting box and the lower connecting plate. A self-counterforce mechanism is formed by the single-acting rotating loading oil cylinder and the see-through carbon fiber counterforce frame jointly. The see-through carbon fiber counterforce frame almost has no absorption of X-rays, and the X-rays pass through carbon fiber to irradiate the test piece without generating energy loss. The industrial CT scanner synchronous loading test apparatus provided by the invention works together with the industrial CT scanner, and can achieve loading of the test piece, and real-time scanning of change conditions such as the damage to the test piece can be realized.

Description

technical field [0001] The invention is mainly used to realize the matching loading of industrial CT scanning machines, and is specially designed to study the damage and destruction mechanism of civil engineering materials, and realize the purpose of collecting CT tomographic images in real time during the loading and damage process of materials, and belongs to civil engineering material test equipment field. Background technique [0002] In recent years, the use of industrial CT scanners to non-destructively collect and analyze the internal mesoscopic composition and damage mechanism of materials has gradually become one of the important technical means for civil engineering materials research. The basic principle is to penetrate the measured object through the radiation emitted by the industrial CT machine, and through the attenuation law of the radiation energy, reconstruct and calculate to form an image to analyze the composition and structure. However, since the indust...

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Problems solved by technology

[0004] At present, there is no synchronous loading device specially developed for industrial CT scanners. Some research institutions have developed loading equipment for medical CT scanners. , the strength is lower than 40kv) cannot scan the engineering material specimens with high density, and the ray penetration ability is limited, which can only meet the scanning and flaw detection of specimens with a diameter of less than 5cm, and cannot meet the detection requirements of conventional engineering materials. The radiation intensity of industrial CT scanners exceeds 200kv, which can meet the scanning and flaw detection requirements of civil engineering materials with a diameter of more than 10cm

On the other hand, the images acquired by medical CT scanners are reconstructed based on the characteristics of the human body. The threshold segmentation and pattern recognition of the images are not suitable for civil engineering materials, and the program is difficult to carry out secondary development.

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