The quality of the girth welds on pipelines is a critical point regarding the safe operation.
Non-contact pipeline magnetic detection (NPMD) is a non-destructive detection technology …

A novel detection method and targets signal extraction algorithm for parallel steel pipeline
localization and defects recognition based on harmonic magnetic field are proposed. An …

Despite the increased attention that has been given to the unmanned aerial vehicle (UAV)-
based magnetic survey systems in the past decade, the processing of UAV magnetic data is …

In navigation work, the geomagnetic sensor signal is susceptible to interference, so the
calibration process is necessary to compensate sensor model error. However, we found the …

In view of the detection requirements of pipeline internal and external surface defects and
pipeline special regular structure detection, based on the magnetic shielding effect inside …

In order to find the defects in ferromagnetic materials, a non-contact harmonic detection
method is proposed. According to the principle of frequency modulated carrier wave, a …

Bridges are prone to collapse under certain circumstances, for instance, by natural disasters,
traffic overloading, deterioration processes or lack of maintenance, resulting in huge …

Accepted: 14 January 2021 Aiming at the problem of defects detection of steel pipeline, a
harmonic detection system was developed based on electromagnetic principle, and the …