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The hissing of high voltage transmission lines is due to corona discharge, not magnetism. The phenomenon is also called audible magnetic noise, [ 1 ] electromagnetic acoustic noise, lamination vibration [ 2 ] or electromagnetically induced acoustic noise, [ 3 ] or more rarely, electrical noise, [ 4 ] or "coil noise", depending on the application.
Saginaw M26/27 transmission — 3 and 4-speed longitudinal light duty (less than 300 hp) wide ratio manual transmission made by GM at their Saginaw, Michigan factory; Muncie M62/M64 — 3-speed longitudinal transmission made by GM; Muncie SM318 transmission — 3-speed transmission used from 1954 through 1969 in both passenger car and truck ...
An acoustic transmission line is the use of a long duct, which acts as an acoustic waveguide and is used to produce or transmit sound in an undistorted manner. Technically it is the acoustic analog of the electrical transmission line , typically conceived as a rigid-walled duct or tube, that is long and thin relative to the wavelength of sound ...
Noise, static or snow screen captured from a blank VHS tape. Noise, commonly known as static, white noise, static noise, or snow, in analog video, CRTs and television, is a random dot pixel pattern of static displayed when no transmission signal is obtained by the antenna receiver of television sets and other display devices.
The RF is then coupled to the cable through the line driver as common-mode noise. Since the noise is common-mode, shielding has very little effect, even with differential pairs . The RF energy is capacitively coupled from the signal pair to the shield and the shield itself does the radiating.
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Transmission loss (TL) in duct acoustics describes the acoustic performances of a muffler-like system. It is frequently used in the industry areas such as muffler manufacturers and NVH (noise, vibration and harshness) department of automobile manufacturers, and in academic studies.
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