Electroacoustic evaluations of 1-3 piezocomposite SonoPanel(TM ) materials
1Naval Res. Lab., Washington, DC, USA.
Summary
SonoPanel(TM), a 1-3 piezocomposite, shows promise for underwater acoustics. Its robust performance under pressure and shock, along with stable acoustic properties, makes it suitable for large-area applications.
Area of Science:
- Materials Science
- Acoustics
- Piezoelectric Composites
Background:
- 1-3 piezocomposites offer unique electromechanical properties.
- Advanced composite materials are crucial for developing novel underwater acoustic systems.
Purpose of the Study:
- To investigate the electromechanical and acoustical properties of SonoPanel(TM), a 1-3 piezocomposite.
- To evaluate the suitability of SonoPanel(TM) for underwater acoustical applications.
Main Methods:
- Experimental examination of in-air electromechanical characteristics.
- In-water acoustical property measurements under varying temperature, hydrostatic pressure, and frequency.
- Assessment of response to underwater explosive shock.
Main Results:
- Parasitic modes were observed in addition to the expected thickness mode in in-air measurements.
- Stable acoustical properties were maintained across different temperatures, pressures, and frequencies.
- No detrimental effects on mechanical structure or acoustical performance were found after explosive shock exposure.
- Linearity with electrical drive level and hydrostatic pressure stability were established.
Conclusions:
- SonoPanel(TM) exhibits stable and robust acoustical performance.
- The material demonstrates suitability for underwater acoustical applications, especially those requiring large area coverage.
- The observed modal behavior is linked to the piezocomposite's structure.
