SCS 9020B - Impedance Kundt tube Standard version Sound Absorption and Zs according to ISO/ASTM standards. 3 diameters available: 100mm: up to 1800 Hz 28mm: up to 6400 Hz 45mm: up to 4000 Hz
Standard version with optional add-on's for Sound Insulation TL and Zc.
Special version to measure alpha, Zs, TL, Zc, Gamma, etc. from T60 parameter determined with Impulse Response method SCS 9021 - Oberst method for Elastic modulus and Damping loss factor determination Oberst device to measure Elastic modulus and Damping Loss Factor of thin bars (1mm thick) clamped to one end and covered with damping materials. Excitation using electromagnetic trasducers, measurement with small accelerometer, optional laser transducer or non-contact probe SCS 9022 - SAE method for Damping loss factor determination Steel plate 6mm thick suspended on 4 metallic springs, covered with damping materials. Instrumented hammer excitation and accelerometer for FRF measurement SCS 9023 - Flow resistance ISO methodology with forced-air from a moving piston at frequency of 2Hz. Inner pression measured using a special microphone system. System calibration with supplied sealed tap. SCS 9025 - Tortuosity Methodolgy based on Electrical Impedence in water. Sample is placed in water between two electrods. SCS 9026 - Bulk modulus Specific device to measure Static Elastic modulus and Poisson ratio, Dynamic Elastic modulus and damping loss factor of porous samples: textile and/or PU foam alike. Measurements can be conducted in air or inside a vacuum chamber (100 mm Hg) SCS 9031 - ABS Cabine Random incidence Sound absorption coefficient in a small cabine (so called alpha cabine) of about 20 mc, scaled to ISO 354 reverberant room of 200 mc. Excitation using a set of loudspeaker and measuremetn in 5 microphone positions, using interrupted noise and Schroeder method, and/or Impulse response method.
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Vibro-Acoustic
Physical Models
Software products to predict acoustic, elastic or thermodynamic properties of porous materials or multi-layered structures including such materials
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