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Broadband Signal Recorder with Reference to Space-Time Coordinates for Electrical Exploration Geophysical Works
The paper solves the problem of creating a device
for electrical measurements for the purpose of geological
research. There are a large number of data acquisition and
processing systems, analog-to-digital converters and other serial
processing technical means for measuring and storing analog
electrical data with their preliminary conversion into digital
readings. This is done for the purpose of subsequent processing
of these signals, which allows calculating some characteristics,
which are then used to calculate and model the characteristics of
soil, rocks, etc. These electrical measurements for geological and
geophysical surveys require the reference of the readings to an
absolute grid of spatial coordinates and to absolute time. Such a
binding is carried out using special communication units with
global satellite systems GPS and GLONASS. These units are
independently capable of communicating with the indicated
satellite systems to obtain spatial and temporal absolute
coordinates. It is also important to synchronize the received
readings to the specified absolute time scale. It is also necessary
to provide wide bandwidth, high conversion accuracy, autonomy
of work according to a predetermined program or work with
operator control, as two possible modes, mechanical and
hermetic protection of such units is also required from almost all
types of harmful influences found in nature. This task in the
complex is solved by creating a special device, which is described
in this paper.
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