Accuracies/Repeatabilities of Airborne (C)MUT Characterization
Konferenz: MikroSystemTechnik Kongress 2023 - Kongress
23.10.2023-25.10.2023 in Dresden, Deutschland
Tagungsband: MikroSystemTechnik Kongress 2023
Seiten: 5Sprache: EnglischTyp: PDF
Autoren:
Koeble, S.; Koch, S. G. (Fraunhofer IPMS, Dresden, Germany)
Inhalt:
This study investigates the accuracies of a measurement setup for airborne high-frequency micromachined ultrasonic transducers. Using additive manufacturing, we designed and fabricated different apertures to improve local resolution and evaluate their effect on sound pressure and directional patterns. The results show that while apertures significantly improve the resolution, they also attenuate the measurement signal, requiring a trade-off between resolution and signal strength.