Long life coaxial sparker for underwater sound source

摘要: An efficient sparker for a pulse powered underwater acoustic source msweeping is capable of repetitive discharges at about 15 Hz least one hour without replacement or maintenance. The has tubularly-shaped cathode spaced apart from an elongate anode that coaxially extends the length and cylindrically-shaped insulator fills space between anode. cathode, anode, are secured to collar shaped have minimal drag when towed through water speeds up 35 knots. configuration selection fabrication materials assure nominal constant gap maintained