Abstract
New piezoelectric 1-3 composite materials containing ceramic rods embedded in a polymeric matrix have been shown to exhibit excellent piezoelectric properties for sonar transducer applications. A 4×10 hydrophone array was recently fabricated by using injection-molded 1-3 piezocomposites of PZT-4 ceramic and a polyurethane resin. The array panel was evaluated in the Anechoic Tank Facility at USRD in Orlando, FL. Free-field voltage sensitivity, directivity pattern and interelement phase relationship were determined as a function of temperature, pressure, and frequency (up to 200 kHz). Element-to-element uniformity within the array was observed. Pressure and temperature stabilities of the panel were also demonstrated up to 7 MPa at 3 °C. The ability of this 1-3 composite array to detect low-sound pressure levels was also shown in comparison with similar arrays of other materials such as lead titanate ceramic and piezorubber composite. These test results indicate that 1-3 piezocomposite is a promising candidate for application in high-frequency sonar transdu- cers. [Work supported by ONR.]
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
