ERI Electrical Resistivity Imaging Equipment For Geophysics Exploration

Geophysical Resistivity Imaging Instrument For Geophysics Exploration 

Introduction

This 2D resistivity imaging system takes WDA-1/WDA-1B super digital DC resistivity/IP meter as its mainframe to do control and imaging, completing with intelligent cables and stainless steel electrodes. This system can conduct multi-electrode 2D/3D resistivity imaging and multi-electrode 2D induced polarization imaging.

Electrical resistivity imaging (ERI) is a direct-current (or low-frequency alternating- current) method that can be used to estimate the distribution of electrical resistivity under the assumption of electrical isotropy and scalar quantities in the subsurface.

For 2D imaging survey, to check the grounding resistance before the measurement is necessary, and the difference between grounding resistances should be small.

Specification

Main features and functions

Lightweight and flexible - the main unit is small in size and light in weight, and can handle high-density resistivity measurement tasks in most areas.

Advanced measurement and control method - all electrode arrangements adopt rolling measurement method. By moving the electrode, the section can be infinitely connected, and the section end becomes easy; single-point re-measurement and measurement from any point can be done at will.

Unique and open measurement process control - the power supply time and power outage time of each data measurement process can be flexibly selected, and the instrument can automatically monitor the change gradient of the electrode potential. When it exceeds the user-set threshold, it will automatically delay the waiting time set by the user, and start measurement after the electrode potential returns to stability, thereby ensuring that higher data acquisition quality can be obtained under complex conditions.

Ultra-large power supply, ultra-wide range, ultra-high precision - up to 9000W (1500V×6A) power supply capacity, 160Vp-p ultra-wide voltage input range, extremely high small signal measurement accuracy (±1% measurement accuracy can be given when the voltage is as small as 0.1mV and the current is as small as 0.1mA), so that the instrument can be better used in high-resistance areas to obtain deeper and better measurement results.

Bluetooth technology, wireless remote control - the first international and domestic remote control of the instrument host by a handheld computer with Bluetooth wireless communication technology. Within 10 meters of the instrument host, it can easily set parameters, start measurement, and transmit and display measurement results, which is unprecedentedly convenient.

Tablet computer control, powerful functions - all-Chinese tablet computers realize human-machine interface and acquisition control, acquisition parameter setting, data display and storage, high-density electrical method chromatogram drawing, etc. are fast and intuitive, allowing you to easily complete field measurement work.

Easy to expand, unlimited possibilities - data acquisition control and data storage are all completed by the tablet computer, and the expansion of data storage capacity and the expansion of acquisition software functions (such as adding special high-density measurement devices) will be easier to achieve.

Tablet computer control, powerful functions - Windows 10 tablet computer realizes human-machine interface and acquisition control, acquisition parameter setting, data display and storage, various curve drawing (such as joint profile, joint electrical sounding, Wenner sounding, Schlumberger sounding, etc., and induced polarization attenuation curve, etc.), etc., can display the measurement chromatogram in real time, fast and intuitive, and very easy to operate, allowing you to easily complete field measurement work, and can process data on site to improve the quality and efficiency of field work.

Equipped with dual distributed high-density cable interfaces, cross-hole high-density measurements no longer require transition switch controllers, and the measurement process is simpler and easier.

Perfect anti-interference technology - using multi-stage filtering and signal enhancement technology, integrated electrical interference suppressor function (with super anti-common mode interference and differential mode interference capabilities), high measurement accuracy.

Automatically perform natural potential, drift and electrode polarization compensation, with a compensation range of up to ±10V.

The receiving part has instantaneous overvoltage input protection capability, and the transmitting part has overvoltage, overcurrent and AB open circuit protection capabilities, as well as DC high voltage reverse connection protection capabilities.

Grounding resistance check - the grounding of AB electrodes and MN electrodes can be checked at any time, which is convenient and practical.

The diagnostic program can quickly and accurately determine the location of the fault and the main damaged components.

The imported fully sealed box has the advantages of waterproof, dustproof and long life.

Flexible control options - you can also use a laptop to remotely control the instrument host to complete the measurement work.

Certificate

Company Profile

Contact information