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add some glue (e.g. a layer of glue is often added on the top of television coils ; over the years, this glue degrades and the sound level increases) change the shape of the coil (e.g. change coil shape to a figure eight rather than a traditional coil shape) isolate the coil from the rest of the device to minimize structure-borne noise
In audio systems, parasitic oscillations can sometimes be heard as annoying sounds in the speakers or earphones. The oscillations waste power and may cause undesirable heating. For example, an audio power amplifier that goes into parasitic oscillation may generate enough power to damage connected speakers. A circuit that is oscillating will not ...
For large power units, dynamic uninterruptible power supplies (DUPS) are sometimes used. A synchronous motor/alternator is connected on the mains via a choke. Energy is stored in a flywheel. When the mains power fails, an eddy-current regulation maintains the power on the load as long as the flywheel's energy is not exhausted.
Electricity is the set of physical phenomena associated with the presence and motion of matter possessing an electric charge.Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as described by Maxwell's equations.
A 200 kW Caterpillar diesel generator set in a sound attenuated enclosure used as an emergency backup at a sewage treatment substation in Atlanta, United States. A diesel generator (DG) (also known as a diesel GenSet) is the combination of a diesel engine with an electric generator (often an alternator) to generate electrical energy. [1]
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Electromagnetic interference divides into several categories according to the source and signal characteristics. The origin of interference, often called "noise" in this context, can be human-made (artificial) or natural.
Jobs at Amazon are physically demanding and the expectations can be high, but the company’s fulfillment centers are not sweatshops. In late September, I visited the Chester warehouse for an hour-long guided tour. Employees were working at a speed that seemed brisk yet reasonable. There were no idle moments, but no signs of exhaustion, either.