Publications by authors named "Martin Bring"
A single crystal/epoxy 1-3 composite plate transducer with air backing and two acoustic matching layers was modelled, fabricated and compared to a similar PZT transducer. For the relevant underwater applications, the usable frequency band is restricted by reactive electrical power. The design goal was to provide an underwater transmitter that could be operated over a wide range of frequencies, but not necessarily create a single pulse spanning the entire frequency band.
View Article and Find Full Text PDFOptimization of Matching Layers to Extend the Usable Frequency Band for Underwater Single-Crystal Piezocomposite Transducers.
IEEE Trans Ultrason Ferroelectr Freq Control
February 2022
The ongoing robotic revolution in oceanic science puts new requirements on sonar technology. Small platforms require compact multi-purpose transducers, with strict requirements on power consumption and heat dissipation. Introducing single-crystal ferroelectrics as the active material of the transmitter can be one way of meeting the new requirements.
View Article and Find Full Text PDFArticle Synopsis
- Understanding energy loss in piezoelectric materials is crucial for manufacturers of acoustic transducers, as it impacts their efficiency.
- The power dissipation in these materials can be attributed to various factors influenced by the phase angles of mechanical, electrical, and piezoelectric constants, yet this separation relies on the type of constitutive equation used.
- This study highlights the complexity of identifying specific losses in piezoelectric materials, revealing that incorrect assumptions about material constants can lead to flawed piezoelectric models.