Characterization of a piezoelectric acoustic sensor fabricated for low-frequency applications: a comparative study of three methods
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AuthorCampo Valera, María Mercedes; Asorey Cacheda, Rafael; Rodríguez Rodríguez, Ignacio; Villo Pérez, Isidro
Knowledge AreaTeoría de la Señal y las Comunicaciones
SponsorsThis workwas supported by the grants PID2020-116329GB-C22 and TED2021-129336B-I00 funded by MCIN/AEI/10.13039/501100011033 and by the European Union NextGenerationEU/PRTR. This work is also a result of an internship funded by the Autonomous Community of the Región of Murcia through the Fundación Séneca—Agencia de Ciencia y Tecnología de la Región de Murcia (Seneca Foundation—Agency for Science and Technology in the Region of Murcia) and the European Union’s NextGenerationEU program.
Bibliographic CitationCampo-Valera, M.; Asorey-Cacheda, R.; Rodríguez-Rodríguez, I.; Villó-Pérez, I. Characterization of a Piezoelectric Acoustic Sensor Fabricated for Low-Frequency Applications: A Comparative Study of Three Methods. Sensors 2023, 23, 2742. https://doi.org/10.3390/s23052742
Piezoelectric transducers are widely used for generating acoustic energy, and choosing the right radiating element is crucial for efficient energy conversion. In recent decades, numerous studies have been conducted to characterize ceramics based on their elastic, dielectric, and electromechanical properties, which have improved our understanding of their vibrational behavior and aided in the manufacturing of piezoelectric transducers for ultrasonic applications. However, most of these studies have focused on the characterization of ceramics and transducers using electrical impedance to obtain resonance and anti-resonance frequencies. Few studies have explored other important quantities such as acoustic sensitivity using the direct comparison method. In this work, we present a comprehensive study that covers the design, manufacturing, and experimental validation of a small-sized, easy-to-assemble piezoelectric acoustic sensor for low-frequency applications, using a soft ceramic PIC255 ...
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