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HARMONICS - Understanding the Facts Richard P. Bingham Abstract Understanding what is important to know easily harmonics can be challenging for those without extensive electrical applied science backgrounds. In this two part series of denominations, the first article exit help to clarify what those important facts are, and the second go away help tell when to raise the flag. What is a Harmonic The mine run definition for a harmonic is a sinusoidal cistron of a periodic wave or quantity having a oftenness that is an integral multiple of the primaeval frequency. [1]. Some identifyences confabulate to clean or pure ply as those without both harmonics. But much(prenominal) clean wave forms typically only outlast in a laboratory. Harmonics cede been around for a deep time and will continue to do so. In fact, musicians concur been aware of such since the invention of the first gearing or woodwind instrument. Harmonics (called overtones in music) are responsib le for what makes a motorcar horn sound homogeneous a trumpet, and a clarinet like a clarinet. Electrical generators try to produce electric power where the voltage waveform has only one frequency associated with it, the important frequency. In the North America, this frequency is 60 Hz, or cycles per second. In European countries and other parts of the world, this frequency is usually 50 Hz.

Aircraft very much uses 400 Hz as the fundamental frequency. At 60 Hz, this means that sixty times a second, the voltage waveform increases to a maximum positive value, then(prenominal) decreases to zero, further change magnitude to a maximum d amaging value, and then back to zero. The a! rrange at which these changes occurs is the trigometric function called a sine wave, as shown in figure 1. This function occurs in many natural phenomena, such as the speed of a pendulum as it swings back and forth, or the way a string on a voilin vibrates when plucked. 1.1 0.9 0.7 0.5 0.3 0.1 -0.1 -0.3 -0.5 -0.7 variety 1. Sine Wave -0.9 -1.1 The frequency of the harmonics are different,...If you want to get a full essay, purchase order it on our website: BestEssayCheap.com

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