Term Categories: Glossary

Able to return immediately to the original size and shape after being stretched or squeezed; springy.

Circular induced currents that are generated by an alternating current in the nearby coil.

A signal indicating reflected acoustic energy.

A medium in which the propagation velocity depends on the wave frequency.

The variation of phase velocity with frequency. In general, any process separating radiation into components having different frequencies, energies, velocities, or other characteristics.

A log recorded as a series of discrete numerical values (compared to analog recording).

Describes the charge separation or polarization in a medium.

Dielectric constant or relative permittivity is the factor by which the capacitance of a capacitor filled with a particular material is decreased relative to the same filled with vacuum.

A laminar discontinuity such as an area of unbonded materials.

A discontinuity or other imperfection causing a reduction in the quality of a material or component.