First Results from the New Multi-purpose Instrument CapGeo

High quality geophysical equipment is expensive. Therefore, people repeatedly ask for instruments, which are adapted to measure more then one physical parameters. An example for this is the idea to combine Transient Electromagnetic Method (TEM) with Magnetic Resonance Sounding Method (MRS). The MRS method delivers the water content and the TEM method delivers the resistivity distribution. Unfortunately, this idea is not really practicable. The loop may be useful for both methods but the electronics must be quite different. Here we present and discuss first results measured with new type of equipment called CapGeo. This instrument was developed for the geophysical institute of TU Braunschweig (Prof. Hördt). The main purposes are capacitive resistivity measurements. But the severe requirements make this instrument eminent suitable for other geophysical exploration methods. Till now we have made some first field test measurements for four different methods: - Capacitive Resistivity (CR) - Spectral Induced Polarization (SIP) - Radiomagnetotellurics (RMT) - Very Low Frequency (VLF), Z/H