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Topic: Sine wave

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Trigonometric function The sine of an angle is the ratio of the length of the opposite side to the length of the hypotenuse. They are periodic functions with characteristic wave patterns as graphs, useful for modelling recurring phenomena such as sound or light waves. Every signal can be written as a (typically infinite) sum of sine and cosine functions of different frequencies; this is the basic idea of Fourier analysis, where trigonometric series are used to solve a variety of boundary-value problems in partial differential equations. www.brainyencyclopedia.com /encyclopedia/t/tr/trigonometric_function.html   (2545 words)

Sine/Cosine wave oscillator The sine wave is the signal to be 90 degree delayed from the cosine wave. I introduce the oscillator which outputs the Sine wave and the Cosine wave at the same time using the operational amplifier. The 90 degree phase is shifted about the sine wave and the cosine wave. www.interq.or.jp /japan/se-inoue/e_ckt20.htm   (122 words)

Nodes and Anti-nodes When the motion of a traveling wave is discussed, it is customary to refer to a point of large maximum displacement as a crest and a point of large negative displacement as a trough. Recall that a standing wave is not actually a wave but rather a pattern which results from the interference of two or more waves; since a standing wave is not technically a wave, then an antinode is not technically a point on a wave. A standing wave pattern is not actually a wave; rather it is the pattern resulting from the presence of two waves (sometimes more) of the same frequency with different directions of travel within the same medium. www.glenbrook.k12.il.us /gbssci/phys/Class/waves/u10l4c.html   (705 words)

Sine_Wave Since a sine wave has only a single frequency associated with it, it may be considered the simplest sound. may be analyzed as the sum of a series of sine waves with frequencies in a A sinusoidal wave or function, that is, one moving in www.sfu.ca /sonic-studio/handbook/Sine_Wave.html   (72 words)

Sine wave oscillator The sine wave oscillator is the oscillator which is difficult to make because the distortion of the oscillation signal occurs compared with the square wave oscillator, the triangular wave oscillator. The Wien bridge sine wave oscillator to introduce is the oscillator which works in the oscillation by returning(positive feedback) the oscillation output to the input. I introduce the sine wave oscillator which used the operational amplifier in this page. www.interq.or.jp /japan/se-inoue/e_ckt18.htm   (246 words)

waveform - a Whatis.com definition - see also: sine wave The sine wave is unique in that it represents energy entirely concentrated at a single frequency. The most familiar AC waveform is the sine wave, which derives its name from the fact that the current or voltage varies with the sine of the elapsed time. Household utility current has a sine waveform with a frequency of 60 Hz in most countries including the United States, although in some countries it is 50 Hz. whatis.techtarget.com /definition/0,,sid9_gci213731,00.html   (241 words)

Triangle wave - Wikipedia, the free encyclopedia However, the higher harmonics roll off much faster than in a square wave (proportional to the inverse square of the harmonic number as opposed to just the inverse), and so its sound is smoother than a square wave and is nearer to that of a sine wave. It is possible to approximate a triangle wave with additive synthesis by adding odd harmonics of the fundamental, multiplying every (4n−1)th harmonic by −1 (or changing its phase byπ), and rolling off the harmonics by the inverse square of their relative frequency to the fundamental. A triangle wave is a basic kind of non-sinusoidal waveform named for its triangular shape. en.wikipedia.org /wiki/Triangle_wave   (209 words)

Sine Wave (DSP Blockset) A vector containing the frequencies of the sine waves in the output (one frequency for each sine, in rads/sec), or a scalar to be applied to all. A vector containing the phase offsets of the sine waves in the output (one phase offset for each sine, in radians), or a scalar to be applied to all. A vector containing the individual amplitudes of the sine waves in the output (one amplitude for each sine), or a scalar to be applied to all. www.tau.ac.il /cc/pages/docs/matlab/help/toolbox/dspblks/sinewave.html   (885 words)

Electrical Waveform Output The positive and negative pulses of the square wave are thinned, separated and made taller, so the peak voltage is much closer to that of a sine wave, and the overall shape of the wave more closely resembles that of a sine wave. Modified Square Wave: This waveform is a compromise between the sine wave and the square wave. Sine Wave: This is the best waveform, as it is the shape of an (ideal) AC electrical signal from the wall. www.pcguide.com /ref/power/ext/ups/funcOutput-c.html   (715 words)

Articles - Sine wave The human ear can recognize single sine waves because they sound "clean" or "clear" to us; some sounds that approximate a pure sine wave are whistling, a crystal glass set to vibrate by running a wet finger around its rim, and the sound made by a tuning fork. A sine wave or sinusoid is a waveform whose graph is identical to the generalized sine function Any non-sinusoidal waveforms, such as square waves or even the irregular sound waves made by human speech, are actually a collection of sinusoidal waves of different periods and frequencies blended together. www.sinoz.com /articles/Sine_wave   (280 words)

A Quick Sine Wave Generator This circuit generates a sine wave by first generating a square wave, at the required frequency, with amplifier A1 that is configured as an astable oscillator with the frequency determined by R1 and C1. The fundamental frequency component of a square wave is about 1.27 times the peak amplitude of the square wave and the amplitude of the sine wave output will be approximately 87 percent of the peak of the square wave. The following design, and accompanying Excel spreadsheet implement a sine wave generator that can be quickly assembled with a dual op amp and small number of resistors and capacitors. www.national.com /nationaledge/jun04/article.html   (670 words)

Sine wave characteristics This wave shape is called a sine wave because the voltage of the coil depends on its angular position in the magnetic field. Therefore, an understanding of sine wave characteristics and how they can be acted upon is essential for you to understand modulation. You should recall that the trigonometric ratio (inset in figure 1-3) for the sine in a right triangle (a triangle in which one angle is 90 degrees) is: www.tpub.com /neets/book12/48a.htm   (632 words)

Discover Circuits - Oscillators - Sine Wave Sine wave step up converter uses Class E concept: 02/17/05 EDN Design Ideas / (added 6/05) Many power applications ranging from luminescent and fluorescent lighting to telephone-ringing voltage generators require a more or less sinusoidal-drive voltage. Low Frequency Sine Wave Generator: The two circuits below illustrate generating low frequency sine waves by shifting the phase of the signal through an RC network so that oscillation occurs where the total phase shift is360 degrees. CMOS hex inverter generates low distortion sine waves: 02/05/2004 EDN-Design Ideas In low-noise analog circuits, a high-gain amplifier serves at the input to increase the SNR. www.discovercircuits.com /O/o-sine.htm   (1824 words)

EDN Access--06.19.97 Simple circuit generates clean sine waves Generating a sine wave, however, is not nearly as simple or inexpensive. The filter's output is a sine wave; the higher the order of the filter, the purer the sine wave. A switched-capacitor filter provides a means of generating a clean sine wave without the need for cumbersome and costly multipole filters. www.edn.com /archives/1997/061997/13di_01.htm   (373 words)

Sine Waves and Sound Sine waves were generated by that great sound editor Cool Edit. These sine waves can be played at the same time to recreate the original sound. The number after the Hz number is the amplitude of the sine wave. www.mindspring.com /~scottr/zmusic   (670 words)

Sine Waves A particularly simple kind of wave, the sine wave, is illustrated in figure 1.2. Physicists actually like to write the equation for a sine wave in a slightly simpler form. The crest and the trough of a wave are the locations of the maximum and minimum displacements, as seen in figure 1.2. www.physics.nmt.edu /~raymond/classes/ph13xbook/node5.html   (423 words)

The Geometer's Sketchpad® - : Sine Waver The resulting curve is the sine wave, which plots the height of a point moving around the unit circle as a function of time. This "height" of a point on a unit circle is known as the sine of the angle determined by that point (from the center of the circle). It, therefore, represents the sine of X (because it falls on the red line) at a given moment in time (because it falls on the blue line). www.keypress.com /sketchpad/javasketchpad/gallery/pages/sine_waver.php   (494 words)

1.html The harmonics of a particular sine wave at a certain frequency are sine waves whose frequencies vary from that of the particular sine wave by whole multiples and whose amplitudes are less. Red is the graph of y = sin x, the basic sine wave. The shape of the graph itself resembles a wave in the ocean, and, in fact, that is the name we give to this particular graph. jwilson.coe.uga.edu /emt669/Student.Folders/Godfrey.Paul/up/1.html   (1143 words)

EM411.com - [forum] sine waves, square waves, triangle waves - Electronic Music 411 Sine waves represent the fundamental component for repetition, which the ear typically perceives as sound, but in truth, the ear picks up vibrations of air that are interpreted in the brain as recognizable repetition. If you go by strictly trigonometric functions, then vectors are the primal component of sound, not sine waves. The amen break could almost considered the new sine wave.... www.em411.com /forum/20856/2/sine_waves_square_waves_triangle_waves.html   (407 words)

UVISION DEBUGGER: SINE WAVE SIGNAL FUNCTION starts the sine wave function which will generate a sine wave on analog input 0 ranging from 0.0 volts to 2.5 volts. Is it possible to create a sine wave input on the analog inputs using the signal functions in the uVision Debugger? signal void analog0_sine (float limit) { float i; float i2; float sine; printf ("Analog0_sine (%f) entered.\n", limit); while (1) { /* forever */ /* SIN swings from -1 to 1 so... www.keil.com /support/docs/1846.htm   (175 words)

Sine Wave (Simulink Reference) Using the Sine Wave block in this way allows you to build models with sine wave sources that are purely discrete, rather than models that are hybrid continuous/discrete systems. If selected, column or row matrix values for the Sine Wave block's numeric parameters result in a vector output signal; otherwise, the block outputs a signal of the same dimensionality as the parameters. Thus, if the accuracy of your model requires that the output of conditionally executed Sine Wave blocks remain in sync with the rest of the model, you should use time-based mode for computing the output of the conditionally executed blocks. www-rohan.sdsu.edu /doc/matlab/toolbox/simulink/slref/sinewave.html   (811 words)

Sine wave Applet The individual sine waves are red and blue, the sum is purple. This applet maniputlates two sine waves and their sum. The "Sum" checkbox turns the display of the sum wave on and off. www.udel.edu /idsardi/sinewave/sinewave.html   (130 words)

Mastervolt products > sine wave inverters Efficiency graph from a 500W Mastervolt sine wave inverter: a high efficiency mode is already achieved with a relatively low load. Until now, however, the results were less than perfect as most inverters could only produce an output voltage that was not sine wave formed and the efficiency of the products were low. When shore power is available, the onboard system starts using it automatically and the Mass sine wave inverter is switched to wait-mode. www.mastervolt.com /inverter/index.asp   (996 words)

A Sine Wave Generator One type of signal that is in frequent demand is the sine wave. With both sine and cosine waves available, this circuit is sometimes known as a quadrature oscillator. This is reversed again by the second integrator, so its output is still a negative sine wave. www.play-hookey.com /analog/sine_wave_generator.html   (550 words)

Miniature Audio Oscillator A mini sized, battery powered sine and square wave source is invaluable for on site testing of all sorts of audio equipment and even workshop use where the item to be tested may not fit on the workbench, for example a 24 channel mixing console or a large powered loudspeaker system. The additional four diode network which is switched across the output of A4 and voltage limits the output level in square wave mode to match the sine wave level and at the same time regulates against variations in the battery voltage. The battery drain in sine wave mode is a miniscule 1.7mA increasing to about 4.7mA in square wave mode. sound.westhost.com /project86.htm   (2796 words)

Explanation of Sin Wave The Sine wave is (partly) created by effective use of the leg muscles which is also known as "Knee Spring". Remember that Sine wave and Sine wave motion are difficult to understand and that they are even more difficult to attain in practice. In addition to Sine wave, we also have the Sine wave motion which is harder to understand. www.taekwondo.freeserve.co.uk /taekwon_do_information/reference/explanation_of_sin_wave.htm   (740 words)

Sine Wave Modulation Synthesis for Programmers Harmonic sounds generally consist of sine waves which are multiples of each other, while noises or inharmonic sounds consist of sine waves at inharmonic frequencies. Of course with this new Feedback Sine Wave you could obtain better results with additive synthesis too, but this is not enough because you still require a lot of waveforms to achieve complex sounds. The smallest building block of any sound in the real world is the Sine wave, and according to Fourier theory, all sounds are constructed from a multitude of sine waves at differing frequencies and amplitudes. www.geocities.com /SiliconValley/Campus/8645/synth.html   (2764 words)

Self-powered Sine to Square wave Converter - RED - Page17 The input sine wave feeds a voltage doubler formed by C1, C2, D1 and D2 that powers the IC. This circuit is intended to provide good square waves converting a sine wave picked-up from an existing generator. Output square wave amplitude is proportional to input amplitude. www.redcircuits.com /Page17.htm   (248 words)

Pure Sine Wave Power Inverters - DonRowe.com Superior quality true sine wave output, the Prosine 1000 and 1800 stand-alone inverters are ideally suited for electrical systems that already have a quality multistage battery charger. ProSine true Sine Wave Inverter/Chargers are available in 2000 watt (2.0), 2500 watt (2.5) and 3000 watt (3.0) models. ProSine true Sine Wave Inverters are available in 1000 watt and 1800 watt models. www.donrowe.com /inverters/puresine.html   (450 words)

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