U.S. Geological Survey Open-File Report 2007-1194


Figure 11.  The sensor rings of a Modular Acoustic Velocity Sensor (MAVS).

Figure 11. The sensor rings of a Modular Acoustic Velocity Sensor (MAVS). The electronics case is out of the picture at the top left. Acoustic transducers are embedded in the rings, and velocity is computed based on travel time between transducer pairs.