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amplitude Definition

am·pli·tude (-to̵̅o̅d′, -tyo̵̅o̅d′)

noun

  1. the quality of being ample or the amount or degree to which a thing extends
  2. an amount that is more than enough; abundance; fullness
  3. scope or breadth, as of mind
  4. the angular distance of a star from the true east or west point of the horizon, at the moment of its rising or setting
  5. the extreme range of a fluctuating quantity, as an alternating current or the swing of a pendulum, generally measured from the average or mean to the extreme

Etymology: L amplitudo < amplus: see ample

amplitude Telecom Definition
The extreme range, or magnitude, of a fluctuating value such as an acoustic or electromagnetic signal, amplitude is measured perpendicular to the to the time axis of a time-plot, i.e., frequency, of a sine wave. Amplitude is a measure of the intensity, loudness, power, strength, or volume level of a signal. In an electrical circuit operating on alternating current (ac), amplitude is measured as the Voltage (V) level and is expressed as +V and V, depending on the direction of the current. See also sine wave.
amplitude Usage Examples

Preposition: of

  • oscillation: This point is known as the " First primary notch " because the amplitude of the primary oscillation has fallen to zero.
  • waveform: Most software audio programs allow viewing the amplitude of the waveform for detailed editing.
  • vibration: The amplitude of vibration of the system at resonance is observed to be 14 mm.
  • fluctuation: These are the amplitude of the fluctuations, and the fact that the vacuum energy now, is incredibly near zero.

Converse of object

  • normalize: E is the normalized structure amplitude, SIGE is its standard deviation.
  • modulate: The reflected light beam has therefore been amplitude modulated by the sound.
  • scatter: Solution method: A simple method for exact calculation of scattering amplitudes is proposed.

Adjective modifier

  • calculated: Scaling observed and calculated amplitudes is making by the comparison of its the origine peaks of Patterson.
  • observed: The default value is 1/3 the value of the largest observed structure amplitude, Fo, which is printed on each run.
  • tidal: Maximum tidal amplitudes are found at the head of the basin where reflection occurs.

Modifies a noun

  • modulation: Some radios may have a setting marked AM ( amplitude modulation ).
  • oscillation: The system is not completely stable: one observes small amplitude oscillations around equilibrium.
  • envelope: The " secret " is in the amplitude envelope.
  • loading: Specimens were tested under constant amplitude loading at room temperature in laboratory air.

Noun used with modifier

  • helicity: Solution method: The automatic amplitude generator GRACE is used to get the necessary helicity amplitudes for all the four-fermion processes.
  • oscillation: At higher oscillation amplitudes, the test probe actually bounces on the surface to permit the investigation of impact phenomena.
  • displacement: The displacement amplitude at the resonance frequency with increasing applied voltage does not increase linearly.
  • voltage: By redefining the zero of time the voltage amplitude can always be made real.
  • wave: The wave amplitude varies from zero ( nodes ) to a maximum, half way between the nodes.
  • pulse: Pulse amplitudes from 5 to 18 V are possible, depending on input power.
amplitude Quotes

Tragedy isthus a representationof anactionthat isworth serious attention, complete in itself and of some amplitude†by means of pityand fear bringing about the purgation of such emotions.

—Aristotle