Full band diaphragm impedance tube

    Acoustic impedance tube is the basic equipment to measure the relevant parameters of acoustic materials.
       Under the condition of meeting the fundamental frequency transmission of guided wave, the sound wave in the pipeline is transmitted in the form of plane wave. In the normal direction of wave transmission, the phase is equal everywhere. Thus, the acoustic signal recorded by the tube wall microphone is the acoustic signal transmitted in the tube.
       Using the sound pressure transfer function between multi spacing and multi position microphones, the incident wave and reflected wave in the pipe can be separated, and the corresponding material acoustic parameters can be obtained by using appropriate physical relations.

Product function

  • Measure the air permeability of the material

    Measure the air permeability of the material


  • Measurement of acoustic impedance of thin layer materials

    Measurement of acoustic impedance of thin layer materials


  • Measuring acoustic impedance of acoustic mesh

    Measuring acoustic impedance of acoustic mesh


  • Measurement of acoustic impedance of waterproof breathable membrane

    Measurement of acoustic impedance of waterproof breathable membrane


  • Measuring material flow resistance

    Measuring material flow resistance


  • Measurement of acoustic impedance of acoustic die-cutting parts

    Measurement of acoustic impedance of acoustic die-cutting parts

product specification

end-of-line noise test and intelligent identification system for industrial products

Product parameters

Product configuration

Application scenarios

The customer groups are mainly distributed in the fields of automobile manufacturing, home appliance manufacturing, medical manufacturing, and other industrial equipment manufacturing.