ABSTRACT
As important as the need to understand the magnetization process and the nature of the MFL fields around flaws, is the need to select the sensor that will best detect the MFL. In most cases, the sensor is a package that consists of a detector, or an array of detectors, the necessary electronics, and some form of presentation of the flaw data. Many sensor types can be used in magnetic NDE, some of which are selected as much for their reliability on hostile environments as for their ability to detect magnetic fields.
