High-frequency impedance tube
Ideal for measuring sound absorption up to 10 kHz, the high-frequency range typical of electric motors and eVTOL propulsion.
Description
Mecanum’s high-frequency impedance tube measures sound absorption at normal incidence up to 10 kHz, the range where the noise of electric motors and eVTOL propulsion concentrates. Built for the electric automotive, eVTOL, and material-manufacturing sectors, it characterizes the small 15 mm samples used to develop quieter, higher-performing components. It follows ASTM E1050 and ISO 10534-2.
Tech specs
Performance
Frequency range
300 Hz to 10 kHz
Dimensions & sample size
Dimensions
570 (L) x 140 (W) x 160 (H) mm
Max sample thickness
130 mm
Sample diameter
15 mm
Measured properties
Sound absorption coefficient
Complex reflection coefficient
Surface acoustic impedance
Software
Tube-X
Tube-X guides you through normal-incidence absorption and transmission loss measurement in a single, intuitive window, clear enough to be productive from the first use. It supports all 2, 3, and 4 microphone methods alongside advanced research features, and lets you save raw data to run your own post-processing. Built-in tools take measurements further, averaging, smoothing, merging curves across frequency ranges, adding an air cavity, comparing projects, and a one-click, ISO/ASTM-ready Excel report turns results into professional documentation.
Applications
Accessories
Optional accessories, available with your high-level impedance tube or separately.
Circular knife
The circular knife lets you cut clean, repeatable sample geometries from porous materials, so each specimen fits the tube precisely and edge effects stay minimal. Consistent sample preparation is one of the simplest ways to improve measurement repeatability.
Material slicer
The material slicer holds a porous sample firmly in place while you cut it to thickness, giving you flat, parallel faces and a controlled height. It removes much of the guesswork from preparing soft or compressible materials that are otherwise hard to slice evenly.
Weather station
The weather station measures the ambient temperature, pressure, and humidity at the moment of testing, the atmospheric conditions that influence the speed of sound and, in turn, your acoustic results. Logging them alongside each measurement keeps your data accurate and traceable.