Ernst Carl Reinhold Brüche (28 March 1900 in Hamburg – 8 February 1985 in Mosbach) was a German physicist.
Brüche studied physics at the Danzig Technische Hochschule from 1919 to 1924.
In 1926 he completed his doctorate under Carl Ramsauer at the Danzig Technische Hochschule.
[1] Until 1933, Brüche was an unpaid lecturer on experimental and technical physics at the Danzig Technische Hochschule, where he worked on the measurement of electron scattering cross-sections of molecular gases.
[1] From 1928 to 1945, he was head of the physics laboratories at the Allgemeine Elektrizitäts-Gesellschaft (AEG) in Reinickendorf, a borough of Berlin.