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What are Lissajous figures?
The definition of a Lissajou figure can be defined as one of an infinite number of curves formed by combining two simple oscillations that are perpendicular to each other. This is usually viewed by an oscilloscope and is used to study the frequency, amplitude, and phase relationships of harmonic variables.
What is the use of Lissajous pattern?
A Lissajous figure is a pattern which is displayed on the screen when sinusoidal signals are applied to both horizontal & vertical deflection plates of CRO. These are used to measure the frequency of the given signals and phase difference between the signals.
What is a Lissajous figure Mcq?
Lissajous figures are used for the measurement of frequency and phase difference. When horizontal deflection plates and vertical deflection plates of CRO (Cathode Ray Oscilloscope) are connected to two sinusoidal voltages, the patterns appear at CRO screen are called the Lissajous pattern.
How do you read Lissajous figures?
The Lissajous pattern indicates the phase difference by the shape of the X-Y plot. A straight line indicates a 0º or 180º phase difference. The angle of the line depends on the difference in amplitude between the two signals, a line at 45º to the horizontal means the amplitudes are equal.
Where do Lissajous figure appear?
A Lissajous figure is displayed on the screen when sinusoidal signals are applied to both horizontal & vertical deflection plates of CRO. Hence, apply the sinusoidal signals, which have same amplitude and frequency to both horizontal and vertical deflection plates of CRO.
Why the Lissajous figure is very useful?
A Lissajous curve is used in experimental tests to determine if a device may be properly categorized as a memristor. It is also used to compare two different electrical signals: a known reference signal and a signal to be tested.
How lissajous patterns are displayed?
A Lissajous figure is displayed on the screen when sinusoidal signals are applied to both horizontal & vertical deflection plates of CRO. If the Lissajous figure is in circular shape, then the phase difference between the two sinusoidal signals will be 90∘ or 270∘.
Where are oscilloscopes used?
Oscilloscopes are used in the sciences, medicine, engineering, automotive and the telecommunications industry. General-purpose instruments are used for maintenance of electronic equipment and laboratory work.
Is a circle a Lissajous figure?
Common Lissajous Curves (See more on the Ellipse.) In the example in Curvilinear Motion, the Lissajous figure is a circle.
What are oscilloscopes used for in real life?
Oscilloscopes are used to view the signals coming directly from devices such as sound cards, allowing the real-time display of waves. They are used as electrocardiograms, to test circuits and to troubleshoot electronic devices such as televisions.