The Multistation Borehole Acquisition System (MBAS) can be used for S-wave borehole tomography or downhole surveying. It consists of up to eight (analog system) or ten (digital system) geophone stations each equipped with a tri-axial sensor. The string is fully water proof and can be used to receive P- and S-waves in dry or water filled boreholes.
Exhibitor
Geotomographie GmbH