The FullWaver works by replacing a central receiver unit with data loggers (V-FullWavers) that continuously record the electrical potential gradients between pairs of electrodes that can be organized on a sparse, irregular grid. Similarly, the current injected via a transmitter between two drive electrodes is also continuously recorded by a data logger (I-FullWaver). All FullWavers are time synchronized to one another. Typically ~15-20 V-FullWavers are distributed in conjunction with the I-FullWaver, and 3D surveys are made up by progressively moving the system over the survey location. The V-FullWavers capture the electrical fields resulting from the current injections made with the I-FullWaver. All units are retrieved at the end of the survey. Supporting software downloads the data stored in the V-FullWavers, performs data quality control and automatically reduces it to a conventional format appropriate for inversion using 3D processing software. The software also provides the user access to the raw data if desired (e.g. for research purposes). For more information, including a video showing a concise overview of the operating principle of the FullWavers, visit: http://www.iris-instruments.com/v-fullwaver.html
The FullWaver is an excellent solution for large-scale 3D surveys, with obvious value for watershed-scale characterization of aquifers, slope stability assessment, mineral exploration and large-scale mapping of saline intrusion.