不锈钢焊缝相控阵与TOFD联合检测方法及系统

By calculating the sound wave propagation path in stainless steel welds and optimizing probe parameters, synchronous alignment and matching of phased array and TOFD detection data are achieved, generating fused defect information. This solves the problem of difficult defect information fusion in existing technologies and improves the accuracy and automation level of detection.

CN122171677BActive Publication Date: 2026-07-17NINGBO SPECIAL EQUIP INSPECTION & RES INST

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NINGBO SPECIAL EQUIP INSPECTION & RES INST
Filing Date
2026-05-11
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, phased array and TOFD detection methods are implemented independently, making it difficult to accurately correspond and integrate stainless steel weld defect information, which affects the accuracy and reliability of the detection results.

Method used

By calculating the acoustic wave propagation path within the weld cross-section and optimizing probe parameters, the temporal synchronization and spatial matching of phased array and TOFD detection data are achieved, generating fused defect information. Combining the characteristics of reflected and diffracted waves, the three-dimensional morphology of the same defect is determined.

Benefits of technology

It significantly improves the detection rate and quantitative accuracy of internal defects in stainless steel welds, provides richer defect characterization, enhances the reliability and automation level of detection, and ensures the safety and service life of welded structures.

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Abstract

本发明涉及无损检测技术领域,尤其涉及一种不锈钢焊缝相控阵与TOFD联合检测方法及系统。基于焊缝参数计算声波路径,确定相控阵与TOFD的检测参数集。分别进行扫查,获取相控阵扇形图像与TOFD衍射波数据以提取缺陷空间位置与几何数据。对双源数据进行时域对齐与空间匹配,识别同一缺陷的关联信号对并提取时序特征。最终融合信息确定焊缝质量。该方法实现了检测数据的互补与关联分析,提高了缺陷定量与定性评估的准确性和可靠性。
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