Skip to main content

Main navigation

  • About ITEFI
  • Research
  • Formación y empleo
  • OpenLab
  • Servicios científico técnicos
  • Staff Directory

Planar modes free piezoelectric resonators using a phononic crystal with holes

piezoelectric resonators
phononic crystals
piezoelectric transducers
Aragón JL, Quintero-Torres R, Domínguez-Juárez JL, Iglesias E, Ronda S, Montero de Espinosa F.
Ultrasonics, 2016 sep, 71:177-82
https://doi.org/10.1016/j.ultras.2016.06.009

By using the principles behind phononic crystals, a periodic array of circular holes made along the polarization thickness direction of piezoceramic resonators are used to stop the planar resonances around the thickness mode band. In this way, a piezoceramic resonator adequate for operation in the thickness mode with an in phase vibration surface is obtained, independently of its lateral shape. Laser vibrometry, electric impedance tests and finite element models are used to corroborate the performances of different resonators made with this procedure. This method can be useful in power ultrasonic devices, physiotherapy and other external medical power ultrasound applications where piston-like vibration in a narrow band is required.

Acknowledgements

J.L.A. wishes to thank Dirección General Asuntos del Personal Académico, Universidad Nacional Autónoma de México and CONACYT for financial support through grants IN106115 and 179619, respectively. R.Q.T. thanks DGAPA-UNAM for financial support through grant IN111614. J.L.D.J. wishes to thank Cátedras CONACYT in CFATA, F.M.E wishes to thank to CICYT DPI2013-46915-C2-1-R support. Finally, F.M.E. and J.L.A. thank the Scientific Cooperation Program UNAM-CSIC.

ULAB

proyecto/s relacionado/s

  • Detección, control y actuación sobre biofilms bacterianos con transductores y materiales piezoeléctricos
    Programa Estatal de I+D+i Orientada a los Retos de la Sociedad (AEI), Fondos Feder
Acoustics and Non Destructive Evaluation (DAEND)
  • Environmental Acoustics (GAA)
  • G Carma: Materials Characterization by Non Destructive Evaluation
  • ULAB, Ultrasounds for Liquid Analysis and Bioengineering
Information and Communication Technologies (TIC)
  • Cybersecurity and Privacy Protection Research Group (GiCP)
  • Research group on Cryptology and Information Security (GiCSI)
    • Quantum Communications Laboratory (LCQE)
  • Multichannel Ultrasonic Signal Processing Group (MUSP)
Sensors and Ultrasonic Systems (DSSU)
  • Ultrasonic Systems and Technologies (USTG)
  • Nanosensors and Smart Systems (NoySi)
  • Ultrasonic Resonators for cavitation and micromanipulation (RESULT)
  • Advanced Sensor Technology (SENSAVAN)
  • Quantum Electronics (QE)
Laboratorios
  • Laboratorio de Acústica
  • Laboratorio de Metrología Ultrasónica Médica (LMUM)
  • Laboratorio de Comunicaciones Cuánticas
  • Laboratory for International Collaboration in Advanced Biophotonics Imaging

Instituto de Tecnologías Físicas y de la Información Leonardo Torres Quevedo  - ITEFI
C/ Serrano, 144. 28006 - Madrid • Tel.: (+34) 91 561 88 06  Contacto  •  Intranet
EDIFICIO PARCIALMENTE ACCESIBLE POR PERSONAS CON MOVILIDAD REDUCIDA