The Burris Gravity Meter~(TM) manufactured by ZLS Corporation, Austin/Texas, USA, is based on the invention of L&R(L. LaCoste and A. Romberg): The ZLS(zero-length spring). A digital feedback system(ra
The previous operation of the ZLS-Burris gravity meter using a PDA already provides a significant improvement of the operation of a metal spring gravity meter. But in the practical field work the obse
Since end of the 90s of the last century the seismological station Moxa was extended and developed into the modern Geodynamic Observatory. It comprises also the new installation of borehole-tilt meter