| 摘要 |
Method of Marine Pest Control by Acoustical Pulses Generated by Plasma Sparking Device Certain marine organisms, particularly small mollusks like zebra mussels, are often considerable nuisances when they proliferate on the bottoms of boats, water intake pipes, and other submarine objects. Chemical methods for their control are generally regarded as undesirable because of potentially adverse effects on the marine environment, and much thought in recent years has been given to developing devices which will generate suitable underwater acoustical pulses to kill or damage the organisms over a limited area. Most of these devices have proven impractical for one reason or another. However a plasma sparking device, developed in various versions for underwater depth sounding and seismic imaging, is capable of producing powerful acoustical pulses at tunable frequencies. This characteristic, plus advantages of light weight, controlability, economy and safety, makes the plasma sparking device, or plasma gun, an ideal and key component of an underwater method or system designed to kill or control unwanted marine organisms in a defined area.
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