Low Electrical Field Characteristics of Piezoelectric Ceramic Rings, Part II.
Abstract
Low electrical field parameters of Type I piezoelectric ceramic rings purchased from four major suppliers of sonar ceramic elements were measured to determine the applicability and value of MIL-STD-1376(SHIPS), 'Piezoelectric Ceramic for Sonar Transducers.' Data are also presented on two recently developed low-aging compositions. Measured values of the relative dielectric constant, loss tangent, electromechanical coupling factor, frequency constant, mechanical Q sub m, elastic compliance coefficient, and piezoelectric constants at low electrical fields and as functions of temperature (0 to 50C) and aging are presented. The samples of Type I ceramic showed some improvement toward satisfying all the specifications of MIL-STD-1376(SHIPS) over those previously measured. The low-aging compositions are characterized as a function of temperature and are shown to be similar to the Type I composition.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1975
- Accession Number
- ADA009768
Entities
People
- R. W. Timme
- S. W. Meeks
Organizations
- United States Naval Research Laboratory