Homepage Institut fuer Geophysik Retired Instruments at station STU

WWSSN long period instruments

Sprengnether seismographs of the former WWSSN long period instrumentation.

paper drum

This is one of the drums formerly used for seismogram recording. Photographic paper was mounted on the drums and exposed by a light-beam reflected by the mirror in a galvanometer. The rotating drum was moved along its axis with a constant rate to produce a helical recording.


Some of the galvanometers together with another seismograph.

other equipment

Some bits an pieces that were in use with the stations equipment in former installations.

e-mail: stuadmin@geophys.uni-stuttgart.de