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Fiber Optics pp 259-261 | Cite as

Decibel Units

  • Fedor Mitschke
Chapter

Abstract

The measurement units of “decibels” are in widespread use in electrical engineering; both physicists and engineers are expected to use them proficiently. They constitute a logarithmic measure useful for gain factors, attenuation factors, etc. The advantage of using a logarithmic measure is that in a transmission chain, there are many elements concatenated, and each has its own gain or attenuation. To obtain the total, addition of decibel values is much more convenient than multiplication of the individual factors.

Keywords

Electrical Engineering Field Amplitude Attenuation Factor Gain Factor Power Gain 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  1. 1.Universität Rostock Institut für PhysikRostockGermany

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