Multiple Sound Source Synchronizer For Seafloor Surveying
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The need to avoid interference between sound sources during seafloor surveys led to the design and assembly of a device which automatically controls the firing rate of different sound sources on board a ship. This synchroniser is built around a Z80 microprocessor which schedules the timing of a single channel seismic system, a 3.5 kHz subbottom profiler and a sea beam bathymetric survey system. The paper describes the design characteristics and the implementation of this synchroniser aboard the R.V. THOMAS WASHINGTON.