EARTH RESISTIVITY

POLARES - ELECTRICAL IMAGING SYSTEM

    earth resistivity > identification of karst caves, buried objects, monitoring of pollutant dispersion, salt ingress, hydrology, archaeology

POLARES32 electrical imaging system for tomography makes use of innovative technology based on Alternate Current (AC) to simultaneously measure and display all survey parameters: soil resistivity, current, voltage, self potential, induced polarization and quality of the measurements
Compact-sized, simple and intuitive, it easily manages all multi-electrode array configurations for the measurement of apparent resistivity: Schlumberger, Wenner, Dipole-Dipole and any other User defined 4-poles configurations.

Equipped with an automatic “multiplexer” to commute signals on the different electrodes, the instrument can measure both current and voltage with microprocessor-controlled sequence of measurements. 
The acquisition controlling system, the power section and the multiplexers for the first 32 electrodes are now integrated in the main unit.

POLARES32 works connected with external laptop PC (to be supplied by the End User); with its data acquisition software supplied with the instrument - with free upgrades for the whole lifetime of the instrument - it has been designed to be a very flexible ERT system, easy to use and with top-level performances.
The simple and intuitive data acquisition software allows you to test all the electrodes, quickly set all the acquisition parameters, manage the type of spreading chosen, always have the measurements under control and save the acquisitions directly in your project directory.
The 12V battery used to energize the ground remains external (not included in the supply, as it is easily available everywhere), together with the signal switching system for each set of 16 electrodes in addition to the first 32 (e.g. the 48-electrode system includes 1x external MPX).

 

Voltage, current, power that can be generated: 700 Vpp, 2 A, 200 W

Converters: 24 bits, Sigma-Delta

Voltage measuring range: 300V, 6V

Current measuring range: 3A

Sinusoidal Frequencies that can be generated: 125Hz, 62.5Hz, 31.2Hz, 15.6Hz, 7.8Hz

Measure quality test: Continuous component, distortion, background noise, exceeding phase, sigma module, sigma phase 

Maximum number of electrodes: unlimited

Maximum number of scans per measurement: unlimited

Power supply: Pb or Lithium External battery, 8.5V= / 15V=; 30A internal fuse, protection against polarity inversion

Dimensions and weight: 406x335x174mm; 7.2kg (main unit)


accessories for electrical imaging and ves

mpx switching box for electrical imaging
ert - 2d - 3d - 4d

mpx


 

Switching box for POLARES electrical imaging system. Each manages a group of 16 electrodes

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multi-electrode cables
ert - 2d - 3d - 4d

multi-electrode cables


 

16 electrodes each - standard spacings 5m (length 85m) or 10 m (length 170m)                              

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extension cable for mpx
ert - 2d - 3d - 4d

extension cable for mpx


 

1 for each 16 electrodes, starting from 48 electrodes and up. They connect two successive mpx with each other, standard lengths 85 and 170m

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stainless steel stake
ert - 2d - 3d - 4d

stainless steel stake


 

16 for each multi-electrode cable; in stainless steel, length 500 mm, diam. 10 mm, complete with clips for connection to the multi-electrode cable                              

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adapter for VES
VES

adapter for VES


 

For POLARES use with 2 AB cables and 2 MN cables (as an alternative to the multi-electrode cable) for the realization of standard 4-electrode VES.

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AB cables
VES

AB cables


 

100, 200, 300, 500 m cables mounted on reel, cross-section 1 mm                              

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mallets
VES

mallets


 

Pair of 2.5 kg mallets with ergonomic handle, ideal for driving stakes into the ground.

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MN cables
VES

MN cables


 

50, 100, 200, 300, 500 m cables mounted on reel, cross-section 1 mm.

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Mn copper stakes
VES

Mn copper stakes


 

Pair of stakes in copper for potential electrodes (MN), diam. 22mm, length approx. 500mm.

REQUEST A QUOTATION

ab stainless steel stakes
VES

ab stainless steel stakes


 

Pair of stakes in stainless steel for current electrodes (AB), diam. 15mm, length approx. 500mm.

REQUEST A QUOTATION

accessories for electrical imaging and ves

mpx switching box for electrical imaging
ert - 2d - 3d - 4d

mpx


 

Switching box for POLARES electrical imaging system. Each manages a group of 16 electrodes

REQUEST A QUOTATION

multi-electrode cables
ert - 2d - 3d - 4d

multi-electrode cables


 

16 electrodes each - standard spacings 5m (length 85m) or 10 m (length 170m)                              

REQUEST A QUOTATION

extension cable for mpx
ert - 2d - 3d - 4d

extension cable for mpx


 

1 for each 16 electrodes, starting from 48 electrodes and up. They connect two successive mpx with each other, standard lengths 85 and 170m

REQUEST A QUOTATION

stainless steel stake
ert - 2d - 3d - 4d

stainless steel stake


 

16 for each multi-electrode cable; in stainless steel, length 500 mm, diam. 10 mm, complete with clips for connection to the multi-electrode cable                              

REQUEST A QUOTATION

adapter for VES
VES

adapter for VES


 

For POLARES use with 2 AB cables and 2 MN cables (as an alternative to the multi-electrode cable) for the realization of standard 4-electrode VES.

REQUEST A QUOTATION

AB cables
VES

AB cables


 

100, 200, 300, 500 m cables mounted on reel, cross-section 1 mm                              

REQUEST A QUOTATION

mallets
VES

mallets


 

Pair of 2.5 kg mallets with ergonomic handle, ideal for driving stakes into the ground.

REQUEST A QUOTATION

MN cables
VES

MN cables


 

50, 100, 200, 300, 500 m cables mounted on reel, cross-section 1 mm.

REQUEST A QUOTATION

Mn copper stakes
VES

Mn copper stakes


 

Pair of stakes in copper for potential electrodes (MN), diam. 22mm, length approx. 500mm.

REQUEST A QUOTATION

ab stainless steel stakes
VES

ab stainless steel stakes


 

Pair of stakes in stainless steel for current electrodes (AB), diam. 15mm, length approx. 500mm.

REQUEST A QUOTATION