# sine wave

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## Sine wave

A wave having a form which, if plotted, would be the same as that of a trigonometric sine or cosine function. The sine wave may be thought of as the projection on a plane of the path of a point moving around a circle at uniform speed. It is characteristic of one-dimensional vibrations and one-dimensional waves having no dissipation. See Harmonic motion

The sine wave is the basic function employed in harmonic analysis. It can be shown that any complex motion in a one-dimensional system can be described as the superposition of sine waves having certain amplitude and phase relationships. The technique for determining these relationships is known as Fourier analysis. See Wave equation, Wave motion

## sine wave

[′sīn ‚wāv]
(physics)
A wave whose amplitude varies as the sine of a linear function of time. Also known as sinusoidal wave.

## sine wave

A wave form containing only one frequency; the amplitude of the periodic oscillation is a sinusoidal function of time. Also see pure tone.

## sine wave

(mathematics)
A waveform of a single constant frequency and amplitude that continues for all time.

Compare wavelet.

## sine wave

A continuous, uniform wave with a constant frequency and amplitude. See wavelength.

References in periodicals archive ?
MTE also claims that the 380V to 480V High Frequency SineWave Guardian offers reliability and durability up to 15,000 feet.
For Type 2, a half-cycle sinewave is the prominent feature indicative of possible velocity response, but Types 1 and 3 waveforms indicate oscillations at input frequency.
Power quality management solutions provider Advance-Galatrek has launched a new range of interactive sinewave Uninterruptible Power Systems (UPSs) for a standard 19" rackmount cabinet tray.
02 ppm from 0[degrees] to 60[degrees]C and has a 10 dBm output sinewave, making it ideal for any precision application.
The system consisted of 12 Solec 50-watt solar modules, 18 Exide 6-volt golf cart batteries, a Trace 4024 sinewave inverter and a Trace C-30 charge controller, with fuses and disconnects for safety.
But controllers and equipment connected to the continuous output of the UPS get 24-hour protection from dirty power, regenerating a clean sinewave output, as well as regulating against brownouts and surges, thus reducing premature failure and improving equipment performance.
No, because if sinewave gratings are used instead of lines the loss of acuity is predictable not from their velocity but from their temporal frequency (Hz).
Some signal controllers (including, as it turned out, those installed in Concord) are electronically sensitive and will operate only on pure sinewave AC power.
The permanent magnet, three-phase, sinewave driven linear motor provides a torque ripple-free, maximum linear velocity of 65.
This command consists of a sinewave of a given dynamic amplitude centered about a given mean level.
The ROM maps the digital phase ramp from the second accumulator into a code which is converted to a sinewave at the DAC output.
To validate these algorithms, he said, the test signals need to include not only the desired excitation (for example, a sinewave sweep to determine frequency response), but also the corresponding background noise signal to activate one or more of the compression algorithms.

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