Encyclopedia > Spectral density

Article Content

Spectral density

In physics, the spectral density, or more correctly the power spectral density of a given bandwidth of electromagnetic radiation is the total power in this bandwidth divided by the specified bandwidth.

Spectral density is usually expressed in watts per hertz (W/Hz).

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

Westhampton Beach, New York

... located in Suffolk County, New York. As of the 2000 census, the village had a total population of 1,902. Geography Westhampton Beach is located at 40°48'32" ...