| absorption spectrum |
An absorption spectrum (also called a dark-line spectrum) consists of dark absorption lines superimposed on a bright continuous spectrum. An absorption spectrum is created when light from an incandescent source passes through a cooler gas that absorbs photons. Each different element and molecule absorbs light at a unique set of frequencies. Astronomers can determine the composition of gases in stars by looking for their characteristic frequencies (this is called spectroscopy). ...
출처: www.allaboutspace.com/subjects/astronomy/glossary/
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| absorption |
The removal of energy from a sonar beam as it propagates through the water. Absorption is one of the factors in limiting the range of a sonar system underwater. For lower side scan sonar frequencies, the chemical relaxation of magnesium sulfate in sea water is a major factor in absorption. The higher frequencies are more affected by the physics of shear and viscosity.
출처: www.instituteformarineacoustics.org/SonarPrimer/da...
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| absorption |
s. jh?a.
출처: www.budsas.org/ebud/bud-dict/dic3_a.htm
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| absorption spectrum |
Also called spectral window of absorption. The spectrum formed by radiation that has been filtered through a material medium, in contrast to emission spectrum.
출처: www.marktechopto.com/engineering/glossary.cfm
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| absorption |
In optics, a source of loss or attenuation that is due to material properties of an optical fiber. Absorption is quite often wavelength dependent.
출처: www.polymicro.com/techsupport/techsupport_glossary...
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