Concentrator

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A concentrator is generally a technical device that combines, bundles or compresses something.

optics

A concentrator in optics should concentrate light with high efficiency on the smallest possible area, i.e. achieve high irradiance . It is not necessary to generate an image of the light source. For this purpose, imaging optical functional elements such as converging lenses and concave mirrors , but also non-imaging optical functional elements such as prisms or cones , as well as constructions that use total reflection are used.

Optical concentrators are used today, for example, for solar thermal power plants and photovoltaic modules .

process technology

In process engineering , a concentrator is used to increase the proportion of a component in a mixture of substances .

network technology

In network technology , a concentrator is a device that combines several lines of a certain bandwidth into one line of greater bandwidth and vice versa. It is, so to speak, a multiplexer functionality.

The term can be found in connection with "remote access". In a “remote access concentrator” several, comparatively narrow-band ISDN or V.90 (56k) lines are connected to a LAN with a much larger bandwidth (10 or 100 Mbit / s).

Switching technology

In a switching center , a concentrator is a switching network that reduces a large number of input lines to a significantly smaller number of output lines.

In the access network of telephone networks , the network elements labeled with the remote peripheral unit are called concentrators.

literature

  • Markus Krauße, Rainer Konrad: Wireless ZigBee networks . Springer Fachmedien, Berlin / Heidelberg 2014, ISBN 978-3-658-05820-3 .
  • Dirk Traeger, Andreas Volk: LAN practice of local networks . Springer Fachmedien, Berlin / Heidelberg, ISBN 978-3-519-06189-2 .

Individual evidence

  1. ^ Gerhard Kloos: Design and layout of optical reflectors . Expert Verlag, Renningen 2007, ISBN 978-3-8169-2644-3 .
  2. ↑ Robert Stieglitz, Volker Heinzel: Thermal solar energy . Springer Verlag, Berlin / Heidelberg 2012, ISBN 978-3-642-29474-7 .
  3. ↑ Gerhard Wiegleb: Gas measurement technology in theory and practice . Springer Fachmedien, Berlin / Heidelberg 2016, ISBN 978-3-658-10686-7 .
  4. ^ H. Hofer: remote data processing . Springer Verlag, Berlin / Heidelberg 1973, ISBN 3-540-06139-8 , pp. 39–43.

Web links

See also