sine wave

noun

Definition of sine wave

: a waveform that represents periodic oscillations in which the amplitude of displacement at each point is proportional to the sine of the phase angle of the displacement and that is visualized as a sine curve : sine curve also : a wave so represented

Examples of sine wave in a Sentence

Recent Examples on the Web As Sugarawa varied the laser's intensity over time in the shape of a sine wave, fluctuating at about 1,000 times a second, Fu picked up a distinct high-pitched tone. Wired, "Hackers Can Use Lasers to ‘Speak’ to Your Amazon Echo or Google Home," 4 Nov. 2019 Where a human driver would try to pick a line and stay on it throughout a corner, the self-steering Audi twitches its wheel with high-frequency corrections, scribbling a sine wave of small inputs. Ezra Dyer, Popular Mechanics, "I Raced a Self-Driving Audi To Defend Humanity's Honor," 17 Nov. 2015 For those with more discerning power supply tastes, this UPS delivers square waveform power, not the more succulent pure sine waves that connoisseurs look for. Ian Paul, PCWorld, "Protect against outages with this $35, six outlet uninterruptible power supply," 9 Oct. 2018 Because the power is essentially filtered through the inverter (AC to DC and back to AC), the sine wave is clean and constant. Ezra Dyer, Popular Mechanics, "How the Honda EU2200i Generator Is Getting Me Through Hurricane Florence," 17 Sep. 2018 The wiry undulations of the Slinky toy, for example, turn out to be good way of modeling sine waves. Paul Grimstad, The New Republic, "Can You Measure How Good a Song Is?," 21 June 2018 Each cycle, each little sine wave, is one-sixtieth of a second. David Roberts, Vox, "This technology could fundamentally change our relationship to electricity," 5 June 2018 More than two centuries ago, mathematicians developed a method called Fourier analysis for describing, for example, the vibrations of a guitar string as the combination of multiple sine waves. Kenneth Chang, New York Times, "Robert P. Langlands Is Awarded the Abel Prize, a Top Math Honor," 20 Mar. 2018 Fourier analysis tells us that complicated sound waves are built from sine waves of many different frequencies, like primary colors. Eugenia Cheng, WSJ, "What Makes One Voice Shrill, Another Sweet?," 11 Apr. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sine wave.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of sine wave

1893, in the meaning defined above

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The first known use of sine wave was in 1893

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Cite this Entry

“Sine wave.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/sine%20wave. Accessed 22 January 2020.

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