Journal
IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL
Volume 68, Issue 7, Pages 2324-2335Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TUFFC.2021.3078069
Keywords
Transducers; Acoustics; Resonant frequency; Films; Integrated circuit modeling; Ultrasonic transducers; Polymers; Ferroelectric polymer; piezoelectricity; polyvinylidene fluoride (PVDF); ultrasonic transducers
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This article presents a review on the application and development of PVDF technology in the manufacturing of in-air ultrasonic transducers, which are widely used in medical robotics, sonar systems, and automation industry. The goal is to provide a comprehensive view on the development of such ultrasonic transducers, highlighting the constructive choices and the advantages/disadvantages.
Polyvinylidene fluoride (PVDF), a material with ferroelectric characteristics, is still extremely topical for the manufacturing of transducers, and different examples, some of which have been actively commercialized since the 1980s, are reported in the literature. In this work, we present a review focused on the PVDF technology for the manufacturing of in-air ultrasonic transducers, which found application in medical robotics, sonar systems, and automation industry (e.g., proximity sensors and obstacle detection). The aim is to provide a comprehensive view on the development of such ultrasonic transducers, highlighting the constructive choices and the advantages/disadvantages in a thorough and concise way.
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