The waveform of a pulse describes how its amplitude changes over time.

Piezoresistors have the disadvantage of being highly sensitive to temperature changes while featuring comparatively small relative stress dependent signal amplitude changes.

A well-studied type of induced activity is amplitude change in oscillatory activity.

It uses a tuned RF transformer to convert frequency changes into amplitude changes.

There are records showing almost clock-like accuracy of the diurnal amplitude changes.

The printability of the final defect will depend on the phase change and the amplitude change of light at a given position.

It varies slightly in brightness, with a periodicity of 6.2 days and an amplitude change of 0.0096 in magnitude.

The mean period is 331 days, but both the period and the amplitude change from one cycle to another.

Within of the resonant energy, the phase of the resonant scattering amplitude changes by .

Huygens showed this was a source of inaccuracy, causing the period to vary with amplitude changes caused by small unavoidable variations in the clock's drive force.