
Extraordinary Professor for Process Measurement Technology
1986
Doctorate at the Faculty of Technical Sciences of the TH Ilmenau
Topic: "A contribution to the development of interference optical accelerometers for inertial navigation systems".
2008
Habilitation at the Faculty of Mechanical Engineering of the TU Ilmenau
Subject: "Interference optical force sensors for the load range up to 0.1 Newton".
2008
Appointment as private lecturer for the field of "Process measurement technology".
2014
Appointment as extraordinary professor for the field of "Process measurement technology".
2022
Retirement, continued work at the Institute of Process Measurement and Sensor Technology
Main research topics:
Digital filters
Interference optical force measurement
Metrology
Nanopositioning and nanometrology

Honorary professor at the Institute for Process Measurement and Sensor Technology
1984
Doctorate at the Ilmenau University of Technology (TH Ilmenau) in the field of process measurement
1983 - 1990
Senior research engineer in the Thermodynamics Department of the Office for Standardization, Metrology and Product Testing for the representation and dissemination of the measurement units density and viscosity
1990 - 1993
Head of the Density Laboratory of the Physikalisch-Technische Bundesanstalt, Braunschweig, Germany
1994 - 2007
Director of the State Office for Metrology and Verification, Thuringia, Germany
2002
Appointment as Visiting Professor at the China Institute of Metrology, Hangzhou, PR China
2006 - 2022
Member of the Scientific Advisory Board of the German Society for Measurement and Automatic Control GMA
2007 - 2015
Director of the Department of Chemical Physics and Explosion Protection at the Physikalisch-Technische Bundesanstalt in Braunschweig, Germany
2007 - 2014
Vice-President of the EURO-ASIAN Cooperation of Metrological Institutions COOMET
2008
Awarded the pin of honor of the Association of German Engineers VDI
2008
Appointment as Honorary Professor of the Friedrich-Alexander University Erlangen-Nuremberg
2012
Distingtion with the Woodington Award of the Measurement Science Conference MSC, Anaheim, California
2012
Appointment as Honorary Professor of the Braunschweig University of Technology (TU Braunschweig)
2015 - 2021
Appointment as Honorary Professor of the Ilmenau University of Technology (TU Ilmenau)
2016- 2022
Chairman of the Advisory Board on Fundamentals and Methods of Measurement and Automation of the German Society for Measurement and Automation GMA
Professor Sommer has published more than 150 papers in scientific journals and has given more than 170 presentations at national and international conferences. He is a co-founder of the Sensor and Measurement Science International Conference SMSI.

Founder and long-time head of the Institute of Process Measurement and Sensor Technology and the Department of Process Measurement Technology
1970
Doctorate as Dr.-Ing.
1974
Habilitation
1974 - 75
Visiting scientist at the Kiev Polytechnic Institute, now the National University of Ukraine
1981
Appointment as full professor for process measurement technology
1990
Foundation of the Institute for Process Measurement and Sensor Technology and its management until 2009
1991
Foundation of SIOS Meßtechnik GmbH,
together with some employees of the institute
1995
Appointment as visiting professor at Xian University of Technology, China
1996
Appointment as visiting professor at Tianjin University, China
1997
Awarded honorary doctorate by the National Technical University of Ukraine
2002
Honorary doctorate awarded by the National University "Lvivska Politechnika", Ukraine
2002
Initiator of the Collaborative Research Center SFB 622 "Nanopositioning and Nanomessing Machines" and speaker until 2008
2002
Award of the Thuringian Research Prize
2003
Appointment as full member of the Academy of Non-Profit Sciences in Erfurt
2009
Award of the Medal of Merit of the Thuringian Ministry of Education and Cultural Affairs and retirement, still working at the institute as consultant and head of the transfer and joint project NPMM 200
2009
Award of the Ernst Abbe Prize
2010
Awarded the VDE Ring of Honor in Gold
2010
Award of the Medal of Honor of the City of Ilmenau
Prof. Jäger has published more than 60 articles in journals and given about 180 lectures at national and international conferences. He has been granted more than 40 patents. Prof. Jäger was invited to give guest lectures in: China (Xian University of Technology 1993, 1997; Tianjin University 1993, 1996, 1998, 2001, 2004, 2010; Shanghai Institute of Measurement and Testing 2006).
National Taiwan University 2002, 2003; Taipei University of Technology 2005. University of North Carolina 2004, 2009. Stanford University 2007. Modern Academy Cairo, Egypt 2007. King Saud University, Saudi Arabia 2008.

Head of the Department of Metrology in Mechanical Engineering and Production Metrology for many years
1972
Doctorate in engineering
1985
Habilitation
1978 - 1979
Additional studies at the Leningrad Polytechnic Institute
1985
Appointment as lecturer for production metrology/ optoelectronic sensor technology
1988
Appointment as associate professor
since 1988
University lecturer at the Institute for Process Measurement and Sensor Technology
2009
Head of the Institute for Process Measurement and Sensor Technology
2010
Retirement, still working as consultant for the Institute of Process Measurement and Sensor Technology


1940
Completion of his studies in mathematics and natural sciences, specializing in aeronautics at the Technical University of Berlin - Charlottenburg
1940-1945
Collaboration in metrological investigations on the landing process of airplanes
1945
Worked in the tire factory in Berlin, which was under Soviet management, and later worked for several years in various metrological design offices in the USSR.
1956
Appointment at the newly founded Ilmenau University of Electrical Engineering; establishment of the "Electrical Measurement Technology" department at the "Institute for General and Theoretical Electrical Engineering" under the direction of Prof. Philippow
1960
Doctorate at the Faculty of Aeronautics of the TU Dresden
1961
Appointment as Full Professor at the TU Ilmenau; Head of the "Institute for General and Optical Metrology" at the "Faculty for Precision Mechanics and Optics
1981
Retirement