Impedance tubes
Impedance Tubes can accurately measure sound absorption coefficients and impedance according to standards described in ISO10534-2
Specification  
Value to be Measured Sound Absorption Coefficient (α)
Standard GB/T-18696, 2-2002, ISO10534-2, 1998
Frequency Range (Hz) 800 ~ 6300
Inner Diameter of Testing Tube 30mm
Loud speaker 4 “ in diameter, 20 Watts, 8 Ohm
1/4’’ Microphone MPA416
Data Acquisition Card MC3022+PA50 or MC3522
Power Amplifier PA50
Software VA-Lab2 Basic + VA-Lab2 IMP-A

 

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