# sine wave

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Related to Sinusoidal wave: Sinusoidal waveform

## sine wave

Sinusoidal waveform A waveform of periodic oscillations–eg, in alternating current in which the amplitude of each point in the wave is proportional to the sine of the time from a start point Cardiology An EKG finding described in severe hyperkalemia where the 'P' wave disappears and the QRS complex and 'T' wave merge in an oscillating pattern

## sine wave

(sīn wāv)
A symmetric wave representing one complete cycle of a single-frequency oscillation; the displacement of mass over time described by using a function from trigonometry, the sine.
References in periodicals archive ?
Caption: Figure 4: (a) Left panel shows multifrequency sinusoidal wave with 500 sample points; middle panel shows the MSE for various length time series across several scaling factors; right panel shows normalized MSE (for scale factors [tau] = 1-10) and SE; (b) top row shows sinusoidal wave with white noise, (c) pink noise, and (d) brown noise; (b) bottom row shows normalized MSE (for scale factors [tau] = 1- 10) and SE for sinusoidal wave with white noise, (c) pink noise, and (d) brown noise, respectively.
As the "triangular wave" is fitted as above, it can be comprehended by analogy that any periodic wave can be reconstructed by the "sinusoid fitting" algorithm based on the HHT; in other words, any original "periodic wave" can be characterized as the "sinusoidal wave" whose amplitude and phase are both transient.
Previously, we evaluated the detectability using a synthetic wave signal consisting of sinusoidal waves and random noise and showed that the arrival times of linearly and elliptically polarized signals can be detected within 10 sampling points at a signal-to-noise ratio (S/N) of -7 dB .
Current waveform should be pure sinusoidal wave. But according to network harmonics and internal motor faults, harmonics are imposed on the current.
For electricity production, consider a sinusoidal wave approaching a mid-Atlantic U.S.
At the output end of the full bridge inverter we get a squared wave output voltage waveform rather than getting a sinusoidal wave. Hence we use filter to get pure sinusoidal output voltage.
Seasonal patterns were modeled using sinusoidal wave functions:
The action of an assumed sinusoidal wave motion impending on the side of a ship can be considered a driving force of adjustable frequency and amplitude.
The Fourier hypothesis predicts lower perceived velocities (relative to consistent directions) and a lower rate of perceived velocities for the sinusoidal wave form than for the stair-step waveform (dashed lines and circle symbols).
Working with services engineer Max Fordham & Partners, the concrete upper floors are of sinusoidal wave form sections to maximize the surface area of the ceiling, allowing the thermal mass of the concrete to temper the environment.

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