amplitude


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Related to amplitude: amplitude modulation

amplitude

 [am´plĭ-to̳d]
1. largeness, fullness; wideness or breadth of range or extent.
2. in conventional tomography, the motion of the x-ray tube (with the cassette moving in the opposite direction) during the x-ray exposure.

am·pli·tude

(am'pli-tūd),
Largeness; extent; breadth or range.
[L. amplitudo, fr. amplus, large]

amplitude

/am·pli·tude/ (am´plĭ-tldbomacd)
1. largeness, fullness; wideness in range or extent.
2. in a phenomenon that occurs in waves, the maximal deviation of a wave from the baseline.

amplitude of accommodation  amount of accommodative power of the eye.

amplitude

[am′plityo̅o̅d]
Etymology: L, amplus, wide
the width or breadth of range or extent, such as amplitude of accommodation or amplitude of convergence.

amplitude

An MRI term for the strength (height) of a signal; the greater the amplitude of an MRI signal, the larger the number of protons in the image and the brighter it will appear.

amplitude

Cardiac pacing The maximum absolute value attained by an electrical waveform, or any quantity that varies periodically; pacemaker amplitudes express the value of the potential difference in volts or current flow in amperes; pacemaker output pulses have typically averaged 5 volts and 10 milliamps. See Relative fusional vergence.

am·pli·tude

(am'pli-tūd)
Largeness; extent; breadth or range.
[L. amplitudo, fr. amplus, large]

am·pli·tude

(am'pli-tūd)
Largeness, extent, breadth, or range.
[L. amplitudo, fr. amplus, large]

amplitude

largeness, fullness; wideness or breadth of range or extent.

amplitude mode
see A-mode ultrasonography.
References in periodicals archive ?
The effect of the frequency and amplitude of vibration factors were studied by regression analysis; the models were chosen based on the determination coefficient and the significance of the regression coefficients, using the t-test under 1% of probability.
P2 peak amplitude and latency measures were determined at the Cz site from each participant's averaged waveforms for each stimulus intensity.
of 2a is shown the process of changing the error amplitude for the systems without the correction (curve 1), also, with the correction (curve 2) of the desired harmonic signal frequency.
The disadvantage of this method is assessment of the alternans signal as a stationary sine wave with constant amplitude and phase, which is not true in general.
Typically, one would expect that deficits in semantic processing to be reflected by lower or reduced N400 amplitudes.
The tests were carried out in tensile mode at various levels of the strain amplitude, i.
Perfusion of the PCB-containing solution resulted in a relatively immediate increase (approximately 20%) in the amplitude of the fEPSP, which reversed with washing.
Similarly, I asked the same question, except starting with a contraction in the given series and correlating its amplitude with the amplitude of the succeeding expansion.
By establishing the appropriate amplitude and phase of the signal at each subarray, this active array antenna (A.
Filling a gap in the literature, this book features in-depth discussions on amplitude modulation AFM, providing an overview of the theory, instrumental considerations and applications of the technique in both academia and industry.