Finished Research Projects – Institute of Geodesy

Establishing an Advanced Mexican Gravity Standardization Base

This joint research project serves for following main scientific objectives: a) supporting the realization of a state of the art national gravity standard in Mexico fulfilling highest accuracy demands in metrology, b) supporting the establishment of a base for a national reference frame for geo-scientific purposes, c) supporting the improvement of a global gravity potential field model for fundamental research in earth science

Led by: Dr.-Ing. Ludger Timmen

Team: Dr.-Ing. Ludger Timmen, Dr.-Ing. Manuel Schilling

Year: 2016

Funding: Physikalisch-Technische Bundesanstalt Braunschweig

Traceability of the FG5X-220 to the SI units

The Micro-g LaCoste FG5 is a free-fall gravimeter with a laser interferometer in Mach-Zehnder configuration which uses simultaneous time and distance measurements to calculate the absolute value of g. The instrument itself contains the necessary standards, a rubidium oscillator and a He-Ne Laser, and operates independent of external references. These internal standards need regular comparisons.

Led by: Dr.-Ing. Ludger Timmen

Team: Dr.-Ing. Ludger Timmen, M. Sc. Manuel Schilling

Year: 2012

Improved compensation of vibrational noise in the laser interferometer with applications in absolute gravimetry

Led by: Dr. Sergiy Svitlov

Year: 2011

Funding: DFG

Duration: 2011 - 2018

Absolute gravimetry in Denmark

Led by: Dr.-Ing. Ludger Timmen

Team: Dipl.-Ing. Olga Gitlein

Year: 2003