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腐蚀是特种设备中大型容器和管道中最常见的缺陷,腐蚀容易造成的容器、管壁承压能力下降,严重的腐蚀会导致盛装介质外漏,造成经济损失和酿成重大安全事故。传统的测厚方法针对腐蚀检测也越来越受到局限性。与传统的腐蚀检测方法相对应,国际无损检测界针对腐蚀已经开发出了线扫描和面扫描等技术。1线扫描与面扫描线扫描是一种长度方向上的扫描方法,如导波。面扫描则是针对某一特定区域的100%的面状扫描技
Corrosion is the most common defect in large containers and pipes in special equipment. The corrosion of containers and walls is likely to result in the decrease of pressure bearing capacity. Serious corrosion can lead to the leakage of medium, resulting in economic losses and serious accidents. The traditional thickness measurement method is also more and more limited for corrosion detection. Corresponding to the traditional method of corrosion detection, the international non-destructive testing community has developed line scanning and surface scanning technologies for corrosion. 1 Line Scan and Area Scan Line scan is a length-wise scanning method such as guided wave. Area scan is a 100% area scan for a specific area