Polyalkylene Glycol as a Transducer Liquid.
Research and development Apr-Dec 73,
NAVAL UNDERSEA CENTER SAN DIEGO CALIF
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Sonar transducers frequently need a liquid path to transmit acoustic energy from the active sound element to the water. Castor oil, used almost exclusively for over 30 years, is not entirely satisfactory. It is viscous under cold conditions and must be heated to fill the transducers. DC 510, which costs ten times more than castor oil, has been used where castor oil was impractical. DC 510, however, attacks certain types of rubber in sonar transducers and causes severe skin and eye irritation to the personnel who must handle it. Polyalkylene glycol has proved in this study to be the most efficient and most inexpensive of the liquids tested for sonar transducers. Author
- Acoustic Detection and Detectors