Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10407561 | Measurement | 2013 | 7 Pages |
Abstract
Magnetic Flux Leakage detector (MFL_PIG) is widely used in long-range pipeline inspection. Acoustic above ground marking device is an important part of the location system in the MFL_PIG. A novel above ground marking algorithm based on function fitting is proposed to reduce marking error of above ground markers (AGMs). Experiments were carried out on a 2.5Â km long pipeline on site. The results demonstrate that the function fitting algorithm has higher precision and anti-interference ability than traditional marking method-extreme value algorithm, and it works very well when SNR of the signal is greater than â2Â dB.
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Physical Sciences and Engineering
Engineering
Control and Systems Engineering
Authors
Yibo Li, Dian Wang, Liying Sun,