Magnetic flux leakage (MFL) detection is one of the most popular methods of pipeline
inspection. It is a nondestructive testing technique which uses magnetic sensitive sensors to …

Magnetic flux leakage (MFL) testing is a widely used nondestructive testing (NDT) method
for the inspection of ferromagnetic materials. This review paper presents the basic principles …

Girth weld cracking is one of the main failure modes in oil and gas pipelines; girth weld
cracking inspection has great economic and social significance for the intrinsic safety of …

Thanks to high sensitivity, excellent scalability, and low power consumption, magnetic tunnel
junction (MTJ)-based tunnel magnetoresistance (TMR) sensors have been widely …

In this paper, we propose a new procedure to estimate the shape of the opening and the
depth profile of an arbitrary three-dimensional (3-D) defect from magnetic flux leakage (MFL) …

Traditional pipeline magnetic flux leakage (MFL) internal technology mainly uses axial
excitation method, which could not recognize the narrow crack defects in the axial direction …

The magnetic flux leakage (MFL) technique, commonly used for nondestructive testing of oil
and gas pipelines, involves the detection of defects and anomalies in the pipe wall and the …

Conventional nondestructive testing techniques do not suffice to efficiently inspect the
defects in multiple nonmetallic pipes. Thus, in this article, we propose a novel method for …

The defect opening profile recognition is of great concern in the magnetic flux leakage (MFL)
measurement technique. The detected spatial MFL signal has three components: horizontal …

Magnetic flux leakage (MFL) testing is the most widely used for the in-service inspection of
oil and gas pipelines. The variation of sensors liftoff caused by vibration results in the …