Topic
Sine wave
About: Sine wave is a research topic. Over the lifetime, 12183 publications have been published within this topic receiving 93013 citations. The topic is also known as: sinusoid.
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TL;DR: This paper gives results concerning the measurement of differential and integral nonlinearity of ADC's using the histogram method with a sine wave input signal and the effect on the results of harmonic distortion of the applied signal.
Abstract: This paper gives results concerning the measurement of differential and integral nonlinearity of ADC's using the histogram method with a sine wave input signal. We specify the amount of overdrive required as a function of the noise level and the desired accuracy and the number of samples required as a function of the desired accuracy, the desired confidence level, and the noise level. An analysis of the effect on the results of harmonic distortion of the applied signal is given. The error analysis assumes a mixture of coherent and random sampling rather than pure random sampling. >
257 citations
TL;DR: In this paper, a temporally dynamic model for diffuse DBDs is introduced, from which equations were derived which allowed the calculation of internal electrical quantities in the discharge gap from measured external electrical quantities.
Abstract: Dielectric barrier discharges (DBDs) are self-extinguishing discharges due to charge accumulation on dielectric surfaces. In order to take advantage of these surface charges also at a low repetition frequency, high-voltage unipolar square pulses (amplitude up to 15 kV, rise and fall time less than 20 ns) are applied to drive DBDs. For electrical diagnostics of this novel excitation method, a temporally dynamic model for diffuse DBDs is introduced, from which equations were derived which allow the calculation of internal electrical quantities in the discharge gap from measured external electrical quantities. It was found, following a primary discharge at the rising front or at the top of the voltage pulse, that a secondary discharge is induced at the end of the falling voltage flank without simultaneously consuming energy from the external circuit. The energy needed is provided by the accumulated surface and space charges left by the primary discharge, which are totally or partially lost under normal low-frequency sine or square wave excitation. Secondary discharges are observed in a wide range of electrode configurations, gases and gas pressures for both homogeneous and filamentary discharges. In the case of filamentary modes, secondary discharges are found to develop along the remaining channels of the preceding primary discharges. Experiments for ozone synthesis show an improved energy efficiency of 8-9 eV per ozone molecule, which is about 30% better than that achieved with sine wave excitation.
246 citations
TL;DR: The data are consistent with the existence of a complex network of inhibitory interconnections among mechanisms that mediate contrast perception and must extend over spatial distances equivalent to more than 12 cycles of the central grating patch.
245 citations
TL;DR: In this paper, a potential perturbation signal by one or more sine waves will generate current responses at more frequencies than the corresponding sine wave wave wave frequencies, which is a nonlinear electrochemical phenomenon.
Abstract: Since a corrosion process is a nonlinear electrochemical phenomenon, a potential perturbation signal by one or more sine waves will generate current responses at more frequencies than the ...
237 citations
TL;DR: In this paper, the authors investigated the applicability of the two-frequency microwave technique at slant incidence for the measurement of ocean wave spectra, first proposed by Rucket et al. (1972), with respect to its applicability in aircraft and space vehicles.
Abstract: The two-frequency microwave technique at slanting incidence for the measurement of ocean wave spectra, first proposed by Rucket al. (1972), is investigated in more detail with respect to its applicability in aircraft and space vehicles. It is shown that by carrying out signal processing in the frequency domain the system-inherent signal-to-noise ratio can be increased considerably, making the operation of the system from air- and space-borne platforms feasible.
237 citations