square wave

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square wave

[′skwer ′wāv]
(electricity)
An oscillation the amplitude of which shows periodic discontinuities between two values, remaining constant between jumps.

square wave

A waveform that rises quickly to a particular amplitude, remains constant for a time period and drops fast at the end. In digital systems, square waves are the norm, because they represent a binary digit (0 or 1). Square waves can also be generated in musical synthesizers and have a raspy sound.


Square Waves
This is the output of a 1 kHz square wave on an oscilloscope. Only the tops and bottoms of the waves are displayed, because the rising and falling is faster than the scope is set for.
References in periodicals archive ?
The ratio of on time to cycle time (duty ratio) of the square wave determines the amplitude of the output voltage, and hence can be varied to regulate voltage.
However, when more extensive functional testing is required, such as measuring voltages greater than 100 volts, applying a square wave to a section of the circuit or making a time domain measurement, many of these testers cannot perform these tasks.
The sensor consists of an LED light source, photodetector IC, interpolator IC and line driver, with outputs consisting of two square waves in quadrature and a gated index pulse.
Triangle waveforms, ramp waveforms, and multilevel square waves also can be generated, subject to some limitations in the maximum useable frequencies.
8 V and HCMOS square waves with 40/60 waveform symmetry Aging at 25[degrees]C is
for a comparable AC induction motor using square waves and the same power control electronics and thermal limits.
An autoset function offers automatic detection and a choice of different views of sine waves, square waves and video signals, including rising and falling edges, video lines and fields and FFT.
The seven models that comprise the TDS1000 and TDS2000 Series Digital Storage Oscilloscopes share several standard features: an FFT function to analyze, characterize, and troubleshoot circuits; triggering such as pulse-width, line-selectable video, and external; an autoset function for automatic detection with a choice of views of sine or square waves and video signals; display of four automatic measurements; and a probe check wizard.
Engineers can use the HABIST Toolkit to generate histogram analysis routines for known sine, sawtooth or square waves, arbitrary waveforms, modulation, noise and A/D converter linearity from several operating modes such as undersampling or coherent and non-coherent testing.