$15.00
Magnetic flux indicator strips are widely used to indicate the presence of induced magnetic fields during the magnetic particle inspection method of ferromagnetic materials. Flux Indicators give evidence of an external field in the air above the magnetised surface and in some circumstances can be used to obtain a semi-qualitative estimate of the tangential field strength H.
Type I indicators are typically used for general engineering applications and type II are used for aerospace applications. Flux indicators have the advantage of being flexible enough so that they can be bent to fit the contours of a work piece, but robust enough to enable them to be used many times.