Classification par l’équation cartésienne explicite en y (courbes algébriques): . LISSAJOUS (COURBE OU FIGURE DE/) · LISSE (COURBE/) · LITUUS. équerre f LISP abbr (list processing language) COMP langage de traitement de listes m Lissajous: – figures npl PHYS courbes de Lissajous f pl list’ n COMP.
|Published (Last):||19 March 2014|
|PDF File Size:||19.88 Mb|
|ePub File Size:||10.64 Mb|
|Price:||Free* [*Free Regsitration Required]|
The following other wikis use this file: An octopus circuit can be used to demonstrate the waveform images on an oscilloscope. Views Read Edit View history. Views View Edit History.
The visual form of these curves is often suggestive of a three-dimensional knotand indeed many kinds of knots, including those known as Lissajous knotsproject to the plane as Lissajous figures.
Lissajous figures were sometimes displayed on oscilloscopes meant to simulate high-tech equipment in science-fiction TV shows and movies in the s and s. A Lissajous curve is used in experimental tests to determine if a device may be properly categorized as a memristor.
courbes en relief
Rational ratios produce closed connected or “still” figures, while irrational ratios produce figures that appear to rotate. Lissajous curves can also be generated using an oscilloscope as illustrated. You may select the license of your choice.
In the professional audio world, this method is used for realtime analysis of the phase relationship between the left and right channels of a stereo audio signal. Retrieved from ” https: Retrieved 17 September Prior to modern electronic equipment, Lissajous curves could be generated mechanically by means of a harmonograph. When the input to an LTI system is sinusoidal, the liseajous is sinusoidal with the same frequency, but it may have a different amplitude and some phase shift.
The arrows show the direction of rotation of the Lissajous figure. From Wikimedia Commons, the free media repository.
On larger, more curbe audio mixing consoles an oscilloscope may be built-in for this purpose. The beam in some versions traces out a lopsided figure-8 pattern on its side.
You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. In other projects Wikimedia Commons.
Retrieved from ” https: I created it with the following GNUplot code:. Unsourced material may be challenged and removed.
Index of /courbes2d/lissajous
The following 2 pages uses this file: Two phase-shifted sinusoid inputs are applied to the oscilloscope in X-Y mode and the phase relationship between the signals is presented as a Lissajous figure. Please help to improve this article by introducing more precise citations. I created it with the following GNUplo. November Learn couebe and when to remove this template message.
Summary [ edit ] Description Lissajous curve 1by2.
Lissajous curve – Academic Kids
Please help improve this article by adding citations to reliable sources. Not to be confused with spirographswhich are generally enclosed by a circular boundary, whereas Lissajous curves are enclosed by rectangular boundaries. Gnuplot diagrams Lissajous curves.