distortion meter wikipedia - EAS
Distortion - Wikipedia
https://en.wikipedia.org/wiki/DistortionIn signal processing, distortion is the alteration of the original shape (or other characteristic) of a signal.In communications and electronics it means the alteration of the waveform of an information-bearing signal, such as an audio signal representing sound or a video signal representing images, in an electronic device or communication channel. ...
Total harmonic distortion - Wikipedia
https://en.wikipedia.org/wiki/Total_harmonic_distortionThe total harmonic distortion (THD or THDi) is a measurement of the harmonic distortion present in a signal and is defined as the ratio of the sum of the powers of all harmonic components to the power of the fundamental frequency. Distortion factor, a closely related term, is sometimes used as a synonym.. In audio systems, lower distortion means the components in a loudspeaker, …
Mass flow sensor - Wikipedia
https://en.wikipedia.org/wiki/Mass_flow_sensorA mass (air) flow sensor (MAF) is a sensor used to determine the mass flow rate of air entering a fuel-injected internal combustion engine.. The air mass information is necessary for the engine control unit (ECU) to balance and deliver the correct fuel mass to the engine. Air changes its density with temperature and pressure. In automotive applications, air density varies with the …