Hans Ferdinand Mayer
Hans Ferdinand Mayer ( born October 23, 1895 in Pforzheim, † October 18, 1980 in Munich) was a German physicist and electrical engineer.
Life
Mayer studied mathematics, physics and astronomy at universities in Karlsruhe and Heidelberg. In 1920 he received his doctorate "On the behavior of molecules to free low-energy electrons ". His doctoral advisor was the Nobel laureate Philipp Lenard. 1922 he joined the Berlin Siemens & Halske AG. 1926 started his collaboration with Karl Küpfmüller ( 1898-1977 ). Both scientists were concerned with ways of trouble-free information transmission in cable connections over long distances. 1936 Mayer took over the management of the research department at the Berlin Siemens & Halske AG. 1943 Mayer was sentenced for political reasons ( listening to " enemy stations" and criticism of the Nazi regime ) to a concentration camp, where he remained until the end of the war. 1946 Mayer moved for four years in the United States. There he conducted research for the U.S. Air Force in Dayton (Ohio ), and taught at Cornell University in Ithaca ( New York ) as a professor of communications engineering. In 1950 he returned to Germany. He had in Munich until 1962, the head of the research department of Communications at Siemens & Halske AG.
Work
Mayer was the author of the Oslo Report, a report on the military research in the Third Reich, who in 1939 was leaked to the British Consulate in Oslo and he signed with " a German scientist who is well disposed towards you ." Only in 1977 he confided to his own family that he had written the Oslo Report. This was published Mayers and his wife after the death at his request.
In November 1926 Mayer published an article ( HFMayer. "On the compensation scheme of the amplifier tube ". Telegraph and telephone technology, 15:335-337, 1926. ) Of (regardless of previous older works of Hermann von Helmholtz and Léon Charles Thévenin ) the introduction of equivalent voltage sources to the backup power sources describes. Mayer was the first to publish that the equivalent voltage of the Thevenin equivalent of the open circuit voltage and the current equivalent of the standby power source is equal to equal to the short-circuit current with it. Edward Lawry Norton has described also in 1926 in an internal report of Bell Labs. Theorem is known as Norton or Mayer Norton theorem.
Hans Ferdinand Mayer still published 25 technical articles and holds more than 80 patents.