Burmah Castrol Magnetic Flux Indicators

Burmah Castrol Magnetic Flux Indicators – are widely used to indicate the presence of induced magnetic fields giving an evidence of external field above the magnetized surface. Type I indicators are typically used for general engineering applications and type II are used for aerospace applications. Both types consist of three laminations of 50 x 12 mm which are fixed together to form a sandwich structure which is nominally 0.15 mm thick. The outer lamination has 3 interruptions which are parallel
to the long side. Type I indicators respond to a weaker field than Type II strips. Both types are protected by a polymer layer and can be differentiated by the Roman numbers.
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 be usable many times.