Term Categories: Glossary

Ability to repeatedly produce a measurement or detectable indication with separate measurements or inspections.

Magnetization remaining after the application of magnetic field has ceased.

the ratio of the reflected to incident amplitudes of a pulse reflected from an interface.

The section of the instrument that amplifies echoes returning from the test object. Also, the transducer that picks up the echoes.

An ultrasonic wave that propagates along the surface of a test object. The particle motion is elliptical in a plane perpendicular to the surface, decreasing rapidly with depth below the surface. The effective depth of penetration is considered to be about one wavelength.

Energy traveling in the form of electromagnetic waves/photons.

See compressional wave

A transient electrical or ultrasonic signal.

Advancement of a wave through a medium

To change data so as to emphasize certain aspects or correct for known influences, thereby facilitating interpretation.