Acoustic Multibeam Hydrographic Survey Systems

What Will You Learn?

• Explain the operating principles of acoustic multibeam hydrographic survey systems
• Describe how acoustic travel time, beam angles, and sound velocity are used to determine depths
• Identify appropriate multibeam applications for navigation, dredging, and underwater structure surveys
• Evaluate common multibeam transducer mounting arrangements
• Explain how vessel motion, draft, settlement, and positioning latency affect survey measurements
• Describe sensor alignment procedures and the four components of a Patch Test
• Apply appropriate survey coverage, overlap, beam-angle, and data-processing criteria
• Describe quality-control and performance-testing procedures for multibeam surveys