The detection of old submerged ammunition that is located on or below the seabed is an
important preparatory work for offshore projects. Multibeam echosounder, side-scan sonar …

Underwater archaeology relies on expensive and time‐consuming invasive methods for
identifying and excavating objects buried in the seabed or identifying layers in shallow and …

(57) ABSTRACT A seismic sensor comprises a central mass having three principal axes and
disposed within a frame. A plurality of transducers is mechanically coupled between the …

(57) ABSTRACT A seismic sensor system includes a seismic sensor sus pended in an
acoustic medium, which is disposed between first and second sensor housings. The …

In a first aspect, a seismic sensor cable system is dis closed. The seismic sensor cable
system may include a cable, a first sensor configured to measure motion of the cable …

In diesem Kapitel werden passive und aktive hydroakustische Messsysteme und-verfahren
vorgestellt, die für Wasserschallmessungen im Meer verwendet werden. Auch wenn viele …

(57) ABSTRACT A multi-axis, single mass acceleration sensor includes a three-dimensional
frame, a test mass, a plurality of trans ducers, and a plurality of struts. The test mass may …

Methods, systems, and apparatuses are disclosed for sensing acoustic waves in a medium.
One example system includes a first elongated member, a first motion sensor sensitive to …

Multiple in marine seismic data is the noise formed due to the high impedance contrast at
the boundary between layer. Multiple interferes the data processing that will also affect the …

Controlling towing speed of a sensor streamer. At least some of the of the embodiments are
methods including: towing a sensor streamer through water at a towing speed; releasing …