
Conventional impedance tube
ASTM E1050 · ASTM E2611 · ISO 10534-2 · 35 to 6600 Hz
Normal-incidence absorption and transmission loss of circular samples.
Impedance Impedence impedance tube impedence conventional circular microphones microphone kundt Kundt E1050 ASTME1050 astme1050 ASTMe1050 E1050 e1050 astmE1050 Astme1050 AstmE1050 1050 ASTME2611 astme2611 E2611 e2611 astmE2611 Astme2611 AstmE2611 2611 ISO10534-2 ISO10534 iso10534-2 iso10534 Iso 10534 Iso10534-2 10534 10534-2 absorption transmission loss TL tl normal-incidence normal incidence
Square impedance tube
ASTM E1050 · ASTM E2611 · ISO 10534-2 · 35 to 4300 Hz
Normal-incidence absorption and transmission loss of square samples and metamaterials.
Impedance Impedence impedance tube impedence square microphones microphone kundt Kundt E1050 ASTME1050 astme1050 ASTMe1050 E1050 e1050 astmE1050 Astme1050 AstmE1050 1050 ASTME2611 astme2611 E2611 e2611 2611 astmE2611 AstmE2611 Astme2611 ISO10534-2 ISO10534 iso10534-2 iso10534 Iso 10534 Iso10534-2 10534 10534-2 absorption transmission loss TL tl metamaterial meta material materials metamaterials normal-incidence normal incidence
High-level impedance tube
ASTM E1050 · ASTM E2611 · ISO 10534-2 · 300 to 6300 Hz
Surface impedance and non-linear behavior of liners and perforated plates at high sound levels, up to 155 dB.
Impedance Impedence impedance tube impedence microphones microphone kundt Kundt E1050 ASTME1050 astme1050 ASTMe1050 E1050 e1050 astmE1050 Astme1050 AstmE1050 1050 ASTME2611 astme2611 E2611 e2611 astmE2611 Astme2611 AstmE2611 2611 ISO10534-2 ISO10534 iso10534-2 iso10534 Iso 10534 Iso10534-2 10534 10534-2 absorption transmission loss TL tl normal-incidence normal incidence liner liners aeronautical perforated plates plate high level highlevel

High-frequency impedance tube
ASTM E1050 · ISO 10534-2 · 300 to 10 kHz
High-frequency sound absorption up to 10 kHz, for electric motor and eVTOL noise.
Impedance Impedence impedance tube impedence microphones microphone kundt Kundt E1050 ASTME1050 astme1050 ASTMe1050 E1050 e1050 astmE1050 Astme1050 AstmE1050 1050 ISO10534-2 ISO10534 iso10534-2 iso10534 10534 10534-2 Iso 10534 Iso10534-2 absorption normal-incidence normal incidence high frequency highfrequency electric motor automotive EV eVTOL evtol propulsion

Asphalt impedance tube
ISO 13472-2 · 250 to 1600 Hz · In situ testing
In-situ sound absorption of road surfaces.
Impedance Impedence impedance tube impedence microphones microphone kundt Kundt ISO13472-2 ISO13472 iso13472-2 iso13472 13472 13472-2 Iso13472-2 Iso13472 absorption normal-incidence normal incidence asphalt road surface surfaces traffic pavement pavements pollution rolling noise

FOAM-X
Inverse characterization · JCA · JCA-Lafarge (JCAL) · Biot
Convert impedance tube measurements into simulation-ready material parameters.
software FOAM-X foam-x FOAMX foamx Foam-x Foam-X foam-X foamX porous fibrous perforated fabric impedance tube impedence Impedance kundt Kundt tubes inverse characterization characterisation JCA JCAL jca jcal Jca Jcal Lafarge lafarge Biot biot extraction parameters parameter open porosity airflow resistivity tortuosity thermal viscous characteristic length lengths lenght lenghts permeability Young’s young’s Young young modulus Poisson’s poisson’s Poisson poisson ratio loss factor damping sensitivity

Impedance tube testing
ISO 10534-2 · ASTM E1050 · ASTM E2611 · NSAC · NSTL
Normal-incidence absorption and transmission loss of your materials.
NSAC nsac Nsac NSTL nstl Nstl characterization characterisation caracterization caracterisation absorption transmission loss tl TL normal-incidence normal incidence impedance tube impedence Impedance Impedence kundt Kundt E1050 ASTME1050 astme1050 ASTMe1050 E1050 e1050 astmE1050 Astme1050 AstmE1050 1050 ASTME2611 astme2611 E2611 e2611 astmE2611 Astme2611 AstmE2611 2611 ISO10534-2 ISO10534 iso10534-2 iso10534 Iso 10534 Iso10534-2 10534 10534-2


















