sine wave


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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.
See also: pure tone

sine wave

continuous, oscillating stream of energy, generated by an electrosurgery unit; used during surgery to section/separate soft tissues (see Table 1)
Table 1: Forms of electrosurgery
Electrosurgery typeFeatures
ElectrofulgurationUses a high-voltage, dampened waveform to produce a spark that arcs from the probe tip to the skin lesion, causing superficial charring of the lesion surface
ElectrosectionUses an undampened or mildly damped current in conjunction with a very fine emitting electron to produce a cutting effect through soft tissue
ElectrocoagulationUses an intermittent damped current in conjunction with a larger emitting electrode to produce less intense heat over a larger area to induce coagulation and thereby haemostasis
ElectrodesiccationUses an intermittent damped waveform with high voltage and a lower current emitted from a ball electrode to induce cell dehydration and tissue shrinkage
References in periodicals archive ?
The noise is spread over a wide range of frequencies, and the amplitude of the sine waves varies enormously with frequency.
Products include solar charging kits, pure and modified sine wave inverters and solar power accessories.
When a sine wave is launched into the port to simulate or measure the S-Parameters, by definition, it must be in a 50-Ohm environment.
To do this, an SCR needs a point of reference to continually reset its "clock," and the handiest one to use is the point where the slope of the sine wave passes through the zero-voltage point.
The sine wave output will eliminate harmonics problems, and with true unitary power factor savings in electrical supply infrastructure costs can be achieved.
But we can gain more insight by just converting each harmonic component in the spectrum into its corresponding sine wave in the time domain, and adding them all up.
They also used a thermal transfer standard to compare the rms voltages of synthesized sine waves at 3 kflz, 10 kHz, 20 kHz, and 50 kHz with a synthesized 1 kHz sine wave.
Limited Tenders are invited for Procurement Of Off Line Sine Wave Invertor Of Rating
As of January 13, 2012, the new water-reducible alkyd paint will be used in manufacturing on our entire line of Matrix Passive Harmonic Filters, line/load reactors, DC link chokes, sine wave and dv/dt motor protection filters.
Both terms relate to how a sine wave voltage signal interacts with the interconnect.
It features a double-conversion design that completely isolates output power from all input power anomalies and delivers perfect sine wave output.