Otto Julius Zobel

Otto Julius Zobel ( born October 20, 1887 in Ripon (Wisconsin ); † January 1970 in Morristown ( New Jersey)) was an American electrical engineer.

Life

After Otto Julius Zobel had acquired in 1909 and his bachelor's degree from Ripon College in Wisconsin, he earned the following year his master's in physics at the University of Wisconsin. He remained there until 1915 as a lecturer in physics. In 1914, Zobel earned his Ph.D. with a thesis on Thermal Conduction and Radiation. In the years 1915 and 1916, he taught physics at the University of Minnesota. 1916 Sable went to AT & T, where he worked on transmission techniques, first in Maplewood (New Jersey) and in 1926 in New York. In 1934 he went to the Bell Telephone Laboratories.

Otto Julius Zobel worked with George Ashley Campbell on frequency division multiplexing to lines with SSB and developed for constant -k filter, M -derived filters, Lattice filter and the Zobel network with the help of the mirror impedance method.

Together with John R. Carson, he investigated noise in the intention to filter it. In 1923, she explained that this is not possible. In this work, the term white noise has been introduced.