地下油气输送管道漏磁高速在线检测技术及装置  

HIGH-SPEED MAGNETIC FLUX LEAKAGE NONDESTRUCTIVE TESTING TECHNOLOGY AND SYSTEM FOR UNDERGROUND OIL OR GAS TRANSPORTATION PIPELINES

作　　者：何辅云[1] 王宝[1] 何箭[1] 

机构地区：[1]合肥工业大学计算机与信息学院,合肥230009

出　　处：《无损检测》2002年第10期425-427,共3页Nondestructive Testing

摘　　要：基于高速漏磁检测原理 ,设计一种高速探伤装置 ,专门对地下油气输送管道在线高速检测 ,具有速度快、无漏检等特点。检测数据经过放大、消噪、压缩后存入RAM或磁带中。检测装置钻出管道后 ,RAM或磁带中数据与车载的检测控制、分析系统联系 ,经去压缩解码器恢复成检测图形曲线。高速检测系统能准确识别缺陷的位置和类型。Based on the theory of magnetic flux leakage testing, a device was designed for on line high speed inspection of underground oil or gas transportation pipelines without any omission. Signals were amplified, noise reduced, compressed and stored up in RAM or tape. After the device getting out of the pipeline, the data were decoded to form testing graph and the defects could be accurately located and identified.

关 键 词：地下油气输送管道 漏磁检测 数据处理 高速探伤装置 

分 类 号：TE973.91[石油与天然气工程—石油机械设备] TG115.284[金属学及工艺—物理冶金]