ABEM - Geophysical Instruments for Road and Tunnel Surveying

ABEM is one of the leading manufacturers in the world of geophysical instruments. Products include a range of vibration monitors, electrical and thermal imaging systems and seismic surveying systems for road analysis applications.

TERRAMETER LUND IMAGING SYSTEM - AUTOMATIC SYSTEM FOR RESISTIVITY AND IP IMAGING

Electrical imaging has emerged as a prime method for infrastructure projects and environmental studies in recent years. The ABEM Terrameter LUND imaging system, developed in cooperation with the Department of Engineering Geology at Lund University, provides fast, accurate and automated resistivity imaging in 2D and 3D.

State-of-the-art technology means that the entire data handling process is automated as much as possible, including data acquisition, processing, interpretation and presentation.

Key features of the LUND imaging system include:

• Integrated roll-along function
• Automatic electrode contact test
• Option to measure IP

ELECTRICAL IMAGING FOR GEOTECHNICAL STUDY AND GEOLOGICAL MAPPING

A major advantage of this method is that it produces continuous images of the variation in properties in the subsurface. Electrical imaging can serve as an excellent basis for planning detailed investigations via, for example, a drilling and sampling programme with optimised sampling locations. The detailed investigation results can then in turn be used as a base for a refined interpretation of the electrical imaging data, leading to a comprehensive and reliable model of the underground.

Typical areas of application include:

• Groundwater resource management and vulnerability assessment
• Mapping and monitoring of contaminated ground / groundwater
• Geotechnical pre-investigation
• Geological mapping
• Geothermal prospecting
• Mapping of frozen ground / permafrost

SEISMIC SURVEYING SYSTEMS

Seismic surveying, one of the most effective ways to explore rock and subsoil, is ideal for finding ground water, oil and useful minerals. ABEM produces several products that ensure optimal seismic surveying.

ABEM's Terraloc Mark 6 seismograph has been especially designed for the full spectrum of shallow seismic applications, whilst the high-resolution remote seismic acquisition system is intended for shallow refraction, 2D and 3D reflection surveys. This system combines 24-bit A/D performance in a 24-channel box that is controlled by a standard laptop. ABEM's SeisOpt @2D is an easy-to-use refraction interpretation and survey design software solution for seismic data.

VIBRATION MONITORS

ABEM produces several vibration monitoring products. The ABEM UVS 600 is ideal for remotely and reliably recording 1-component peak particle velocity, acceleration and displacement over long periods in harsh environments.

The VIBRALOC monitors and analyses vibrations and air shock waves. A compact and versatile monitoring system, it features a modular construction and is equipped with unsurpassed measurement characteristics that ensure peak performance.

Please also see Mining Technology - ABEM - Geophysical and Vibration Monitoring Instruments