Sonar Transducer Reliability Improvement Program (STRIP).

Abstract

Efforts in the various tasks of STRIP have resulted in progress in the following program goals: (1) The quantization of the failure mode of electrical breakdown between the two electrodes on a ceramic surface in a transducer has been completed. Formulae are given for calculation of the reliability and operational lifetime which can be applied to any transducer design; (2) The investigation of the mechanical strength of shielded and unshielded cables and the effectiveness of clamps on connector-boot bonds has been completed; (3) The hardness of the neoprene acoustic windows on the TR-316 projectors increased predominantly after the 71 C dry heat and UV exposure. The largest increases are in the wide-beam sections, reaching a durometer value of Shore A75 from a pre-CUALT value of Shore A55 in two-years equivalent of CUALT on projector A3; and (4) The investigation of loss mechanisms in cement joints of K33 ceramic stacks indicates solid metal electrodes are superior to expanded metal electrodes.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1981
Accession Number
ADA099389

Entities

People

  • R. W. Timme

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Ground and Sea Platforms
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Biomedical And Dental Materials
  • Ceramic Materials
  • Chemistry
  • Composite Materials
  • Engineers
  • Environmental Tests
  • Failure Mode And Effect Analysis
  • Material Degradation Processes
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Materials Testing
  • Metal Matrix Composites
  • Modulus Of Elasticity
  • Polymeric Films
  • Test And Evaluation
  • Transducers

Readers

  • Materials Science and Engineering.
  • Software Engineering
  • Surface Coatings Technology.