Otto Brune

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Otto Walter Heinrich Oscar Brune ( 10. January 1901 - 1982 ) was a South African engineer .

Live and act

Brune made important research contributions in the field of network synthesis at the Massachusetts Institute of Technology (MIT), where he received his doctorate in 1929. His doctorate was supervised by Wilhelm Cauer (and Ernst Guillemin ), who suggested that necessary and sufficient conditions for the feasibility of multi-port impedances be proven. Cauer had already found the necessary conditions, but failed because of the proof that they were sufficient. Brune coined the term “positive-real” (PR) for the corresponding class of analytical functions that can be implemented using a passive electrical network. Brune has also shown that in the case of scalar PR functions it is not necessary to use ideal transformers in order to realize the practical network (which would represent a severe limitation of the applicability). Also the Brune process (method for the synthesis of two-pole functions with any passive two-pole functions with absolutely minimal reactance), the Brune cycle occurring in it (reduction of the degree of the two-pole function by two), the resulting Brune network (canonical network as a result after passing through of the Brune cycle) and the Brune test are named after him.

Brune has also developed the Brune test, named after him, for checking the connectivity of two ports .

background

Brune was born in Kimberley , South Africa in 1901 and returned there in 1935. He then became head of research at the National Research Laboratory in Pretoria .

literature

  • E. Cauer, W. Mathis and R. Pauli, "Life and Work of Wilhelm Cauer (1900-1945)", Proceedings of the Fourteenth International Symposium of Mathematical Theory of Networks and Systems (MTNS2000) , Perpignan, June, 2000. Online - Source September 19, 2008.
  • O. Brune, "Synthesis of a finite two-terminal network whose driving-point impedance is a prescribed function of frequency", Dissertation, MIT, 1931. Online source March 22, 2010.
  • O. Brune, "Synthesis of a finite two-terminal network whose driving-point impedance is a prescribed function of frequency", MIT Journal of Mathematics and Physics , vol 10 , pp 191-236, 1931.
  • O. Brune, "Equivalent Electrical Networks", Phys. Rev. , vol 38, pp. 1783-1783, 1931.
  • Seising, Rudolf, The Fuzzification of Systems , Franz Steiner Verlag, 2005

Individual evidence

  1. ↑ a b Seising, p. 19
  2. ^ Karl L. Wildes, Nilo A. Lindgren, A century of electrical engineering and computer science at MIT, 1882-1982 , p. 157, MIT Press 1985 ISBN 0-262-23119-0
  3. ^ Brune, 1931
  4. ^ Otger Neufang: Lexicon of Electronics . Springer-Verlag, 2013, ISBN 978-3-322-83515-4 ( google.de [accessed on January 7, 2017]).
  5. ^ Wai-Kai Chen, Active Filters: Theory and Implementation , p. 23, Wiley, 1986 ISBN 047182352X
personal data
SURNAME Brune, Otto
ALTERNATIVE NAMES Brune, Otto Walter Heinrich Oscar (full name)
BRIEF DESCRIPTION South African engineer
DATE OF BIRTH January 10, 1901
DATE OF DEATH 1982