Geophysical Survey

Earth resistivity meter 4point light 10W

Our high resolution earth resistivity meter 4point light 10W provides quantitative information about induced polarity (IP) of the soil. It measures the phase shift between the current injected into the ground and the voltage seen at the potential electrodes. It has adequate power to drive Schlumberger soundings up to L/2 = 1000 m.

Application

Groundwater prospecting
Mining
Environment
Induced polarization
Near surface geophysics
Lab measurements
Examination of building materials
Archeology

Electrodes

ActEle – Active Electrodes

For electrical resistivity tomography we offer a chain of active electrodes (ActEle). ActEle is developed especially for connection to the earth resistivity meter 4point light 10W. It is used for multielectrode measurements. By default the electrode chain consists of 20 electrodes at a distance of 5 metres. Other distances (0.2 – 10 m) are available on request. The chain is extendable up to 255 electrodes.

Advantages

Low power consumption, about 2 mW / electrode, active about 42 mW / electrode
Extremely high input impedance due to an integrated amplifier: 1GOhm@1Hz
Very low crosstalk between power and potential lines
Ideal for critical conditions with high contact resistance
Fast: with ActEle and 4point light 10W a 600 reading 2D profile can be measured within 10 to 15 minutes (Compare this to the AGIUSA SWIFT / Sting System: it needs more than 2 hours for the same profile!!)