An extendable concrete, rock core sample surface morphology continuous transmission scanning imaging device and method

By designing an expandable scanning imaging device, using hydraulic rods to adjust camera position and illumination intensity, and combining a laser rangefinder to adjust conveying speed, the problems of poor imaging quality and low efficiency in scanning ultra-long core samples in existing technologies have been solved, achieving adaptive scanning that can adapt to core samples of different diameters and lengths.

CN122650845APending Publication Date: 2026-08-28CHINA THREE GORGES CORPORATION +1
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Patent Information

Application Number
CN202610744992.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-27
Publication Date
2026-08-28

AI Technical Summary

Technical Problem

Existing technologies suffer from poor imaging quality, low efficiency, and inability to adapt to changes in core sample diameter when scanning ultra-long concrete or rock core samples. In particular, there is insufficient illumination for large-diameter core samples and overexposure for small-diameter core samples, and the scanning speed cannot match the sampling density.

Method used

An scalable scanning imaging device was designed, which adjusts the camera position and illumination intensity through a hydraulic rod and adjusts the conveyor speed by a laser rangefinder to achieve adaptive scanning. It includes the combined use of an arc-shaped support frame, a slide bar, a camera unit, a positioning mechanism, and a conveyor belt to adapt to core samples of different diameters and lengths.

Benefits of technology

It achieves image clarity and efficiency in scanning core samples of different diameters and lengths, avoiding insufficient illumination or overexposure, and is suitable for continuous scanning of ultra-long core samples.

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Abstract

The application discloses an extendable concrete and rock core sample surface morphology continuous transmission scanning imaging device and method, and belongs to the technical field of rock mass surface morphology optical scanning. The device comprises a base, a hydraulic rod, an arc-shaped support frame, a scanning mechanism and a positioning mechanism. The scanning mechanism moves upward along with the arc-shaped support frame through an adjusting ring, is pushed by a second connecting rod to drive a sliding rod to move the camera unit radially, so that the distance between the camera and the core sample surface is always kept within the focusing range, and the problem that the existing technology cannot adapt to the diameter change of the core sample only by automatic focusing to cause imaging fluctuation is solved. The positioning mechanism can realize self-adaptive adjustment of illumination intensity by linkage of a light shield, a laser range finder can match the scanning speed by linkage of a gearbox, and an extension frame can realize linear butt joint of multiple devices to adapt to continuous scanning of an ultra-long core sample. The application has high imaging definition and high scanning efficiency, and is suitable for core sample digital detection in the fields of water and electricity, traffic and the like.
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