SIROTEM: A new portable instrument for multichannel transient electromagnetic measurements

Abstract

SIROTEM, a new portable multichannel instrument for transient electromagnetic (TEM) measurements, has been developed by CSIRO with the assistance of the Australian Mineral Industries Research Association and collaborating mining companies. The specifications of SIROTEM greatly exceed those of the earlier generation of TEM instruments. The incorporation of a microprocessor to control the operations, measurement and output functions of the instrument provides SIROTEM with great versatility, e.g. data can be transformed by the instrument into an apparent resistivity cross-section form. The instrument has been tested in eleven separate field locations, and results from two of these test sites are presented.