The impedance tube (also known as Kundt Tube) measurement obtains the normal incidence absorption coefficient of a layer of textiles with a small diameter (usually less than 10 cm)

The PLACID Instruments Impedance Tube is a state-of-the-art solution for accurately measuring the acoustic properties of materials. Designed for precise determination of sound absorption and impedance, it supports a wide range of frequencies, making it ideal for research, development, and industrial applications. Whether you’re evaluating soundproofing materials or testing the acoustic characteristics of new designs, our impedance tube delivers reliable, repeatable results.

Key features include user-friendly software integration, robust construction, and compliance with international standards such as ISO 10534-2, ASTM-E 1050, DIN 52215. Choose PLACID Instruments for precision in acoustics testing.