Mecanum’s 2 microphones impedance tubes are specifically designed to measure the main normal indicators of a wide range of acoustical materials. The method is based on ASTM E1050 and ISO 10534-2 standards.
**Large spacing between µ1 and µ2 is essential for better results at low frequencies (as stated in ASTM E1050)
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MATERIAL PROPERTIES
➡ Normal incidence sound absorption coefficient (α)
➡ Normal incidence complex reflection coefficient (R)
➡ Normal surface impedance (Zs)
TUBE SPECIFICATIONS
| Tube Internal Diameter | Frequency Range | High SPL Option |
| 29 mm | 200-6600 Hz | Available |
| 44.44 mm | 100-4300 Hz | N/A |
| 100 mm | 35-1900 Hz | N/A |
TUBE-X SOFTWARE
TUBE-X is a user-friendly software that will simplify the measurement procedure. It’s also fully compatible with FOAM-X software that can extract non-acoustic parameters of porous materials using the inverse method with a 2 microphones absorption measurement.
ADDITIONAL INFORMATIONS
- All Mecanum impedance tubes are delivered with grids (for low mechanical strength samples) and rings (to avoid leaks).
- All Mecanum’s 2 microphones impedance tubes can be upgraded to 3 or 4 microphones, contact your Mecanum product expert for details.
Other Mecanum’s Related Products
➡ Verification and calibration samples
➡ Resistive screen and fabric holder
➡ Three-microphone version upgrade
