High resolution hidden damage imaging

A method for inspecting materials comprising:

• disposing at least two parallel rows of aligned sense elements on substrate for scanning across a material under test surface, with at least one linear drive conductor segment positioned parallel to and between the sensing element rows for imposing a magnetic field;
• and having a right row of sensing elements for detecting a flaw on the right side of a feature and a left row of sensing elements for detecting cracks on the left side of a feature;
• passing a time-varying electric current through the drive conductor;
• measuring the response from each of the sense elements, comprising the scan responses to a shape filter representing the response from a flaw, and searching the scan responses for indications likely to be the flaw.