Wilfried Gehl

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Wilfried Gehl (born April 14, 1929 in Hermeskeil ; † May 12, 2017 in Weinheim ) was a German electrical engineer.

Life

Wilfried Gehl was born the third son of a teacher. One of his two brothers was the steel manager Hermann Gehl . He also had a younger sister. He grew up in Großlittgen and graduated from high school in Wittlich . He went to RWTH Aachen University to study electrical engineering , where he became active in the Corps Delta in 1951. On December 3, 1952, he was one of the reconstitution corps boys of the Corps Saxonia-Berlin in Aachen. After graduating with a degree in electrical engineering with a focus on high-frequency technology , he went to the BBC in Mannheim-Käfertal. It was more or less by chance that he met Ludwig Fuchs and Walter Pepperl, the shareholders of Pepperl + Fuchs , because he and his wife Gisela had moved into an apartment in a Pepperl + Fuchs apartment building in Mannheim-Sandhofen.

In 1957, as a freelancer at Pepperl + Fuchs, he developed the transducer and after a short time in 1958 the first inductive proximity switch called "Inductive slot sensor SI 2.5", which made it possible to determine the position of objects for the first time without contact and without wear. Gehl then ran his own measurement technology company, but worked with Pepperl + Fuchs until his retirement, particularly in the areas of contactless switches and fail-safe switching devices.

Appreciation

In the Kurpfälzer Meile der Innovations in the Kurpfälzer Meile in front of the Mannheim Palace , a bronze plate has been commemorating Wilfried Gehl's groundbreaking invention of the inductive proximity switch since July 17, 2018.

Patents

  • Arrangement for converting mechanical quantities into a corresponding electrical quantity , patent DE1961P0026549, together with Walter Pepperl.
  • Arrangement for the contactless generation of switching pulses or control commands within a regulating or control system or the like , patent DE19611423788, together with Walter Pepperl.
  • Contact and non-contact switching device, patent DE1967P0043102.
  • Electromagnetic switching device, patent DE19752558344.
  • Temperature monitoring arrangement for a moving component , Patent US4197742A, together with Bernd-Rainer Freiberg, Jürgen Liebe, Horst Muschelknautz.
  • Switching device for a device for electrical stunning of an animal , patent DE19782832149.
  • Contact-free electronic switch , patent DE19792931880.
  • Inductive two-wire proximity switch, patent DE19792915110.
  • Fail-safe switching device , patent DE19873737791.

Web links

Individual evidence

  1. ^ Obituary notice of the Corps Saxonia-Berlin zu Aachen in the FAZ
  2. ^ Carl Weigandt: History of the Corps Saxonia-Berlin, 1867–1967, Aachen 1968, p. 289
personal data
SURNAME Gehl, Wilfried
BRIEF DESCRIPTION German electrical engineer
DATE OF BIRTH April 14, 1929
PLACE OF BIRTH Hermeskeil
DATE OF DEATH May 12, 2017
Place of death Weinheim