The total force tending to set up a magnetic flux in a magnetic circuit. It is usually designated by the letter "H"and the unit is the "Oersted."

The force that holds together the atoms in metal crystals. Analogous to tensile strength, but on a submicroscopic scale.

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A bar magnet, bent into the shape of a horse shoe so that the two poles are adjacent. Usually the term applies to a permanent magnet.

Small cavities in a metal surface by nonuniform electrodeposition or by corrosion.

serif"> - A data presentation method applied to pulse echo techniques. It produces a two-dimensional view of a cross-sectional plane through the test object. The horizontal sweep is proportion [..]

serif">- The signal received from the far boundary or back surface of a test object.

The visual, radiographic or electronic response against which an indication from a discontinuity must be viewed.

Fluorescent residues observed over the general surface of the part during fluorescent penetrant inspection.

The extraneous signals caused by random signal sources within or exterior to the ultrasonic testing system, including the test material. Sometimes called grass or hash.