ERP-1 DIGITAL ELECTRICAL EXPLORATION SYSTEM

Portable digital electrical exploration system ERP-1 is designed for geophysical survey performed by the following methods

•Electrical exploration by DC and AC resistivity method - vertical electric sounding (VES), electric profiling, signal generator, M3, as well as measuring of the full vector of an electric field: magnetomotive force, vector survey

•Natural electric field (self-potential, measuring of stray current field) method

•Induced polarization (IP) with INFAZ-VP version

Applications

•geological mapping

•cryopedology

•search and exploration of mineral deposits

•geoecology

•archeology

•geological engineering

•applied geophysics

•hydrogeology

The system ERP-1 provides a combination of analog and digital signal processing To ensure accumulation in the signal processing measuring unit there are synchronized filters furnished on switched capacitors.

Features

•The system ERP-1 provides a complex of electrical exploration methods that extends the range of solvable problems and improves the quality and accuracy of obtained results

•The system has high noise immunity (good quality of measuring unit narrow-band analoque filter is 18), that is required for urban development, sites near electricity transmission lines, railways, etc.

•Survey result, including the number of profile, survey stake, span, measurement date and time, are stored in memory

•The system ERP-1 is provided with software for data transfer from measuring unit to PC and storage of measurement results in formats compatible with software package IPI2WIN (VES and VES-IP data processing and interpretation, developed by Moscow State University)

•'Digital' area of signal processing contains and additional method of hardware noise reduction

•Transmitter ERP-1 is supplied with two outputs, a switch tumbler for operation with different supply lines (i.e., for double-differential profiling)

•Receiver ERP-1 is supplied with two inputs, a switch tumbler for operation with different receiving lines (i.e., vertical electronic sounding with 'collars')

•The system is developed using technical decisions aimed at cost minimization

•ERP-1 is designed and developed as equipment with the state-of-art element base, available for a wide range of home consumers