Results 81 to 90 of about 1,225 (190)

Attack transient exploration on sopranino recorder with time-domain Near-Field Acoustic Holography method [PDF]

, 2014
International audienceDirectivity of musical instruments have been studied for a long time. In the last decades, there has been a growing interest in imaging methods for the characterization and localization of sound sources.
Tahon, Marie, Bavu, Eric, Melon, Manuel, Garcia, Alexandre   +3 more
core   +3 more sources

Performing Near Field Acoustic Holography Scans for the Purpose of Finding the Acoustic Impedance of a Violin [PDF]

, 2020
This project aimed to measure the acoustic impedance of the violin so that the violin can be better understood from an acoustic standpoint. Near field acoustic holography scans are to be conducted at the open A string resonance of the violin (440 Hz ...
Tomko, Zamara
core   +1 more source

Measurement of incident sound power using near field acoustic holography [PDF]

, 2009
The conventional method of measuring the insertion loss of a partition relies on an assumption of the sound field in the source room being diffuse and the classical relation between the spatial average of the mean square pressure in the source room and ...
Jacobsen, Finn, Tiana Roig, Elisabet
core  

Laser Doppler vibrometry and near-field acoustic holography: different approaches for surface velocity distribution measurement [PDF]

, 2006
Nowadays there are several direct or indirect measurement methods for the determination of the surface velocity in vibrating structures, but two of them seem to be the most promising and interesting, in particular for vibro-acoustic problems: laser ...
G. M. REVEL, MARTARELLI, MILENA, M. MARTARELLI, REVEL, Gian Marco   +3 more
core  

Acoustic Holography With Incoherent Sources [PDF]

, 2005
In near field acoustic holography the sound field is scanned near the surface of the vibrating object; from these measurements the vibration of the structure can be calculated. In the case of correlated sources one reference signal is sufficient.
Druyvesteyn, W.F., Raangs, R.
core  

Probing radiation forces acting on acoustic bubbles using digital in-line holography. [PDF]

Ultrason Sonochem
Mauger C, Inserra C, Lotton A, Grosjean N, Doinikov AA, Blanc-Benon P, Méès L.   +6 more
europepmc   +1 more source

AN IN SILICO STUDY OF LOW-INTENSITY FOCUSED ULTRASOUND DISPLACEMENT MAPPING WITH A 220 KHZ CLINICAL PHASED-ARRAY TRANSDUCER. [PDF]

Proc IEEE Int Symp Biomed Imaging
Holman R, Oliveira T, Fletcher SM, Payne A, McDannold N.   +4 more
europepmc   +1 more source

Effect of HIFU frequency on gold removal efficiency from e-waste. [PDF]

Sci Rep
Pudas T, Holmström A, Hyvönen J, Sillanpää T, Mäkinen J, Weber M, Mizohata K, Kuronen A, Kotiaho T, Haeggström E, Salmi A.   +10 more
europepmc   +1 more source

xDDx: A Numerical Toolbox for Ultrasound Transducer Characterization and Design With Acoustic Holography. [PDF]

IEEE Trans Ultrason Ferroelectr Freq Control
Rosnitskiy PB, Sapozhnikov OA, Khokhlova VA, Kreider W, Tsysar SA, Thomas GPL, Contreras K, Khokhlova TD.   +7 more
europepmc   +1 more source

The Next Dimension: Digital Holography for 3D Interferometric Scattering. [PDF]

ACS Nano
Ortega Arroyo J, Liebel M.
europepmc   +1 more source