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A sound attenuator, or duct silencer, sound trap, or muffler, is a noise control acoustical treatment of Heating Ventilating and Air-Conditioning (HVAC) ductwork designed to reduce transmission of noise through the ductwork, either from equipment into occupied spaces in a building, or between occupied spaces.
An air handler is usually a large metal box containing a blower, furnace or A/C elements, filter racks or chambers, sound attenuators, and dampers. [2] Air handlers usually connect to a ductwork ventilation system that distributes the conditioned air through the building and returns it to the AHU, sometimes exhausting air to the atmosphere and ...
There also exist optical attenuators that decrease the signal in a fiber optic cable intentionally. Attenuation of light is also important in physical oceanography . This same effect is an important consideration in weather radar , as raindrops absorb a part of the emitted beam that is more or less significant, depending on the wavelength used.
In acoustics, acoustic attenuation is a measure of the energy loss of sound propagation through an acoustic transmission medium.Most media have viscosity and are therefore not ideal media.
An attenuator is a passive broadband electronic device that reduces the power of a signal without appreciably distorting its waveform. An attenuator is effectively the opposite of an amplifier, though the two work by different methods. While an amplifier provides gain, an attenuator provides loss, or gain less than unity. An attenuator is often ...
If you're tired of your stomach feeling like a distended balloon, you're not alone. In fact, it is pretty common. A study shows that almost 18% of people experience bloating at least once a week ...
The latest issue of Hello! magazine describes Melania Trump as someone who has "grown in confidence" and now has "newfound authority" during her second stint in the White House as first lady.
What's the deal with these pots and pans? This 12-piece set includes a full lineup of the pots and pans you'll need for everyday cooking, whether you're scrambling eggs or frying up pork chops.
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