What exactly are harmonics and how do they appear? "how are harmonics generated? The signal is just "on" or "off", how are there first, third, and fifth harmonics and why do they get weaker?" Although not a satisfactory answer, you could accept the fact that any physically realizable continuous-time signal can be represented as an infinite sum of sinusoids (that's a Fourier series) Thus, any sinusoidal signal doesn't have harmonics, or it
Why harmonic distortion and not at other frequencies? In understanding harmonic distortion, one piece of the puzzle that is missing for me is: - why does the distortion manifest at harmonic frequencies and not other frequencies Feel free to simply point me at a textbook reading that explains it, if that's easier! I understand that non-linear loads can create distortion
Why dont we use the third harmonic in power transmission? And the whole thing is even further complicated by loads that either abuse the harmonic content (nonlinear loads like rectifiers), or literally don't know what to do with it (the harmonic energy just causes useless heating in motors, and maybe torque pulsation as well)
signal - Harmonic detection using lock-in amplifier - Electrical . . . Can a third harmonic of a signal be detected using a lock-in amplifier under the same parameters fixed for collecting the fundamental or the parameters needs to be adjusted Here by parameters I mean sensitivity , time constant and phase
Efficient method of measuring total harmonic distortion I have been trying to create a set-up for measuring (estimating) the reported total harmonic distortion of an op-amp (Please don't ask why I don't use a spectrum analyzer because I have been assig
approximation of a digital signal using the harmonic I'm new to EE, still struggling in understanding some basic concepts I'm reading a book which says about approximation: To make the shape of the analog signal look more like that of a digital sig