1967 Graduation in Physics at the Technical University of Stuttgart1970 Doctorate at the Technical University of Braunschweig1970 - 1975 Scientific assistant and lecturer at the Technical University of Braunschweig1975 - 2004 Member of Staff at the Physikalische Technischer Bundesanstalt Braunschweig, commissioned to legal metrology, computerized interferometric measurment of length, measurement uncertainties and the adjustment of physical constants