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MFL Principle
Where there is internal or external metal loss, the magnetic flux leaks from the object.
In the MFL testing device, a magnetic sensor is placed between the poles of a magnet yoke to record the leakage field by Hall-effect sensors. Eddy current sensors integrated in the magnetic flux sensors are used to improve the differentiation between internal and external defects.
High magnetization levels are required to differentiate corrosion from other pipeline features such as hard spots, stress and strain variations and to minimize the effects of remanent magnetization and velocity.
The basic principle behind MFL involves magnetizing a ferrous metal object to saturation level with a powerful magnetic field. Where the object has no flaws, the magnetic flux will remain undisturbed.
Nuinfra Consolidated Sendirian Berhad (NCSB) is a
100% Bumiputra company. The Company was incorporated
on 20th August, 1996 under the Company Act 1965. Since
then NCSB does not look back and ensuring that every
aspect of the latest technology being studied and
implemented upon to ensure customer satisfaction.