sine wave

(redirected from Sinusoidal wave)
Also found in: Dictionary, Thesaurus, Financial, Encyclopedia.
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.
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 ?
TB9080FG replaces 120-degree rectangular wave control with sinusoidal wave control that cuts noise from the blower fan motor electronically.
The walls of the channel are assumed to be extensible with a traveling sinusoidal wave, and the displacement in the channel walls is in the transverse direction only.
The pattern must have neighboring features with different spaces described by different sinusoidal waves with a roughness factor of 4 to 50.
In general, the transverse propagation of electromagnetic waves is given by sinusoidal waves f and the intensity of the waves, corresponding to the energy density, is given by [[absolute value of ([psi])].
Researchers have known for years that these afferents respond to skin vibrations, but they studied their responses using so-called sinusoidal waves, which are smooth, repetitive patterns.