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 ?
As the frequency of the sinewave input is increased, the command required to achieve the desired amplitude increases.
Again, the dual-conversion on-line UPS regenerates totally new sinewave power both in utility and battery back-up modes.
The SSG Series is a true double-conversion on-line sinewave regenerative UPS that is an advanced, robust and rugged solution that provides military, aerospace and industrial applications with a high level of power protection that tolerates many of the elements found in these harsh environments.
Tenders are invited for Make - Apc, Ups 1500Va Sinewave Sua 15001 - In With Built In Battery 2Year Warrenty Or Similar I - Ball .
MTE's new High Frequency SineWave GuardianTM, specifically designed for high frequency motor appliations, reduces losses, by protecting against overheating motors, and ultimately providing less downtime
Tenders are invited for Sinewave Inverters Confirming To Is : 13314/1992 With Pwm Technology For General Purpose Suitable For Single Phase Ac Input Voltage 12 V To 260 V, 50 Hz And Single Phase Ac Rated Out Put Voltage 230 V, 50 Hz Model 2200 Va With 03 Nos.
is a "Smart Solar" company that designs and manufactures highly efficient, high-power, transformerless, sinewave DC to AC Inverters (1)and "Smart Load Centers" TM (2) that automatically select the use of utility power or solar power independently, for each of a number of load circuits based on the availability of: Utility and Solar Power, Preset User Priorities, Battery Charge Status, Time of Day, Instantaneous Consumption, Historical Consumption Patterns, and Weather Forecasts.
Tenders are invited for Online Sinewave Inverter For 24V/110V 500 Va Input 24V Dc, Output 110 V Ac Capacity 500 Va As Per Rdso Specn.
These units provide clean, tightly regulated, sinewave output power even when operating from a "dirty" incoming AC power source.
5 Kva True Sinewave Inverter 96 Vdc/220 Vac Suitable To Work On Voltage Range 80 Volt To 114 Volt Dc Input And Nominal Output 220 Vac At 50 Hz With Maximum Plus Minus 2 Percent Frequency Deviation.
AP Passive Harmonic Filters, EMI/RFI filters, DC link chokes, dV/dt and SineWave Guardian(TM) motor protection filters, plus numerous custom magnetic products that provide power quality solutions in a broad range of applications.
5kVA and 3kVA models provide clean, regulated, sinewave output power even when operating from an unregulated incoming ac power source, such as from an on-site generator.