电测与仪表2011，Vol.48Issue(4)：27-29,57,4.
三维漏磁检测实验平台的研制
Development of the 3 - D Magnetic Flux Leakage Measurement Platform
摘要
Abstract
Magnetic Flux leakage (MFL) testing technology is widely used to detect the corrosion defects of the oil and gas pipelines on - line. The traditional 1 - D MFL testing technology is usually employed to measure the leaked field in the direction of radius and can only characterize the depth of the defect. For arbitrary - shaped defects, it is ineffective. To characterize the irregular defects and enhance the capability of inspection, the 3 - D MFL testing technology is required. There is substantive signal to be sampled and processed in the 3 - D MFL measurement system, and hence the system is relatively complicated. In this paper, we present a 3 - D MFL measurement platform, in whicha significantly simplified scheme of data acquisition is proposed. In the platform, the 3 - axis MFL signal is sampled, transmitted and stored via the RS -485 bus at high speed, and the baud rate of the bus is up to 6. 125Mbps. The experimental results show that the proposed platform is efficient in the 3 - D MFL data acquisition, and enhance the capability of inspection.关键词
漏磁检测/三维/无损检测/无损评估Key words
magnetic flux leakage (MFL)/ 3-D/ nondestructive testing/ nondestructive evaluation分类
信息技术与安全科学引用本文复制引用
奉华成,黄松岭,赵云利,宋彬,马宁..三维漏磁检测实验平台的研制[J].电测与仪表,2011,48(4):27-29,57,4.基金项目
国家863计划资助项目(2011AA090301) （2011AA090301）
国家科技支撑计划资助项目(2008BAB30B05) （2008BAB30B05）
