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square wave

   Also found in: Acronyms, Wikipedia 0.01 sec.

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.
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Each pair of needles was connected to an electrical generator which produced a unipolar square wave at 4 Hz with a 0.
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Ferroresonant technology's exceptional ability of isolation, noise attenuation, harmonic mitigation, and unique property of converting square wave to sine wave make it an excellent power conditioning solution.
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