PASI Polares 32, Руководство пользователя

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2. Electrical imaging system for tomography
Polares 32
A brief introduction
POLARES 32 is a lightweight, easy-to-carry and fast AC electrical imaging system for
tomography.
It is designed to accurately measure AC currents and voltages in order to provide the user
with apparent resistivity and phase values in the frequency domain.
It operates with an adjustable transmission frequency in the range of 7 to 125 Hz.
POLARES32 can be used in many applications: laboratory measurements, electrical
surveys, surface electrical resistivity tomography, 3D surveys, mobile surveys of canals,
lakes, sea, etc.
Access to POLARES32 functions is intuitive through the use of an external PC
(Windows™) connected via USB cable.
The use of an external Windows™ PC offers much longer battery life and improved
overall system reliability. Computer faults can be easily solved by replacing the PC,
software updates do not require delicate interventions on the instrument's firmware, and
the user can benefit from remote assistance from our company for fault diagnosis.
The communication interface is a USB port on the PC, through which the user can upload
measurement configurations, install new software versions, download measured data and,
in addition, connect a number of different devices (network interfaces, WiFi routers,
Bluetooth or GPS antennas, keyboards, etc.).
What is the difference with conventional DC electrical
tomography?
The use of Electrical Resistivity Tomography (ERT) for geology has been essentially the
same since its début, based on the original principles of Vertical Electrical Soundings
(VES): apply a direct current to two stakes inserted into the ground (current electrodes A
B or C1 C2) and measure the corresponding voltage between two others (voltage