Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Impedance Combination01:21

Impedance Combination

Consider a string of christmas lights, each bulb symbolizing an impedance element. In this series configuration, the flow of electric current remains uniform across every component. This behavior aligns with Kirchhoff's Voltage Law (KVL), which asserts that the total impedance in such a setup equals the sum of individual impedances—akin to resistors in series. It follows that the voltage from the power source is distributed proportionally among these components, adhering to the voltage division...
Bode Plots Construction01:24

Bode Plots Construction

The Bode plot is an essential tool in control system analysis, mapping the frequency response of a system through a magnitude plot and a phase plot, both against a logarithmic frequency axis. To construct a Bode plot, consider the transfer function H(ω):

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Design and experimental validation of a finite-size labyrinthine metamaterial for vibro-acoustics: enabling upscaling towards large-scale structures.

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences·2024
Same author

Incidence and risk factors of hypoxaemia after preoxygenation at induction of anaesthesia.

British journal of anaesthesia·2019
Same author

Case-control study found that primary language disorders were associated with screen exposure.

Acta paediatrica (Oslo, Norway : 1992)·2018
Same author

Validated chromatographic method for the simultaneous determination of eight drugs (morphine, ropivacaine, bupivacaine, baclofen, clonidine, sufentanil, fentanyl and ziconotide) for intrathecal analgesia.

Annales pharmaceutiques francaises·2018
Same author

Direct observation of dynamic modes excited in a magnetic insulator by pure spin current.

Scientific reports·2016
Same author

Generation of coherent spin-wave modes in yttrium iron garnet microdiscs by spin-orbit torque.

Nature communications·2016
Same journal

High-resolution depth estimation for multiple wideband sources in deep sea via sparse Bayesian learninga).

The Journal of the Acoustical Society of America·2026
Same journal

Depression markers in speech: An approach based on tract variables dynamics.

The Journal of the Acoustical Society of America·2026
Same journal

The oyster toadfish (Opsanus tau) alters active and diurnal calling amid vessel noise in New York City.

The Journal of the Acoustical Society of America·2026
Same journal

Experimental noise characterisation of phase-locked tandem-rotor in edgewise flight.

The Journal of the Acoustical Society of America·2026
Same journal

The tune-text-temporal synergy: Prosodic effects of final segmental weakening in Neapolitan.

The Journal of the Acoustical Society of America·2026
Same journal

Monitoring vessel movement above critical offshore infrastructure using distributed acoustic sensing.

The Journal of the Acoustical Society of America·2026
See all related articles

Related Experiment Video

Updated: Jun 25, 2026

Fabrication and Characterization of Thickness Mode Piezoelectric Devices for Atomization and Acoustofluidics
10:39

Fabrication and Characterization of Thickness Mode Piezoelectric Devices for Atomization and Acoustofluidics

Published on: August 5, 2020

Active acoustical impedance using distributed electrodynamical transducers.

M Collet1, P David, M Berthillier

  • 1FEMTO-ST, DMA, CNRS UMR 6604, University of Franche-Comte, Besancon, France. manuel.collet@univ-fcomte.fr

The Journal of the Acoustical Society of America
|February 12, 2009
PubMed
Summary
This summary is machine-generated.

Researchers developed an active artificial skin using microelectromechanical systems (MEMS) to control acoustic impedance. This technology can dynamically adjust sound reflectivity and transmissibility in structures like ducts.

More Related Videos

Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation
06:54

Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation

Published on: August 4, 2023

Related Experiment Videos

Last Updated: Jun 25, 2026

Fabrication and Characterization of Thickness Mode Piezoelectric Devices for Atomization and Acoustofluidics
10:39

Fabrication and Characterization of Thickness Mode Piezoelectric Devices for Atomization and Acoustofluidics

Published on: August 5, 2020

Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation
06:54

Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation

Published on: August 4, 2023

Area of Science:

  • Acoustics and Materials Science
  • Control Theory and Smart Systems

Background:

  • Emerging microelectromechanical system (MEMS) technology enables advanced artificial skins with numerous actuators.
  • SMART structures with distributed actuators can dynamically alter physical properties like acoustic impedance.

Purpose of the Study:

  • To investigate the acoustic impedance control capabilities of distributed transducers integrated into active artificial skins.
  • To design active interfaces with tailored acoustic impedance for specific acoustical behaviors.

Main Methods:

  • Utilized partial differential equation (PDE) control theory to develop a boundary control equation for wave reflection annihilation.
  • Discretized the control strategy into a low-order time-space operator for experimental implementation using interlaced microphones and loudspeakers.
  • Employed a quasicollocated architecture for robustness and stability.

Main Results:

  • Demonstrated the ability of a controlled semi-distributed active skin to significantly modify sound transmissibility and reflectivity compared to passive interfaces.
  • Numerical and experimental results validated the method for controlling sound propagation in ducts.
  • An energy-based comparison highlighted the efficiency of the active control strategy over classical open-loop methods.

Conclusions:

  • Active artificial skins offer a powerful means to dynamically control acoustic properties.
  • The developed PDE control-based strategy provides an effective and robust method for acoustic manipulation.
  • This research paves the way for advanced acoustic metamaterials and adaptive sound control.