M. VAN RUYMBEKE, FR. BEAUDUCEL, A. SOMERHAUSEN
(ABSTRACT)
The forecasting of natural hazards requires a multi-parameter approach to
incur an increased understanding of the processes involved in nature and thus
aid to decrease the risk of false alarms.
For very complex interactions concerning fluid-flow modulation induced by tectonic
activities (volcanic, geothermal and seismic areas, land-slide zones...) ,
the diversity of the sensors is so broad that the use of existing technology
provides a difficult barrier for scientists with a limited knowledge in metrology.
To address this requirement, an Environmental Data Acquisition System (EDAS)
was developed at the Royal Observatory of Belgium. This system is conceptually
based on the standardisation of geodynamically based instrumentation and provides
for the implementation of resistive and capacitive transducers by means of
sensor interfaces which operate using standard supplies and standard output
signals.
The core base of this standardised data acquisition system are the DAS and
?Das monitoring devices which produce standard data files which follow a standard
sequence to contain date, time and the recorded values in ASCII columns. These
files can in turn be viewed and analysed by utilising the software explicitly
created for EDAS files.
Key words: geodynamics, transducer, seismology, volcanology, tides, multi-parameters
system.