Design of a Flooded Housing for a Towed Autonomous Hydrophone Recording System

The recent miniaturization of hydrophone recorders now allows towed hydrophone systems to be autonomous. The elimination of a long conducting cable and computer-based, shipboard recorders has resulted in a user friendly system which can record better sound quality at a lower cost than traditional ship based towed array surveys. Here I present the design of a flooded housing for a self-contained hydrophone recording system. With slight modifications, this housing can be used with either an integrated single hydrophone recorder (e.g. the SoundTrap® ST300) or with a short array of two hydrophones and a multi-channel recorder (e.g. the SoundTrap® ST4300). 2021 Passive acoustics, Towed array, Flooded housing, SoundTrap NMFS (National Marine Fisheries Service) SWFSC (Southwest Fisheries Science Center) Submitted https://doi.org/10.25923/rmzp-fh90 Public Domain 1907