R&D departments experience delays when supplier specifications for small acoustic membranes are incomplete or missing. Without reliable material parameters, it is difficult to predict the effect of protective screens and vents on the acoustics of an enclosure. ASCEE’s µZ impedance tube measures the acoustic material properties of small samples directly between 20 Hz and 8,000 Hz. This allows you to determine the exact absorption, reflection, and series impedance for your datasheets and simulation models.
Evaluate absorption and impedance from 20 Hz to 8 kHz in a single run. No data fusion is required between measurements taken at different microphone distances.
Characterize samples with diameters ranging from 1 to 3 mm using the tip microphone extension for hearables and MEMS microphones.
Perform calibrations without having to swap out sensors. This reduces measurement time and prevents positioning errors.
Integrated MEMS microphones do not disrupt the sound field and enable the small tube diameter of 20 or 30 mm.
Quantify the normal absorption coefficient (α), reflectance (R), and impedance of porous absorptive materials.
Control, the calibration wizard, and data export are handled via ACME for integration with numerical simulations.
In addition to consulting services, ASCEE provides measurement technology for acoustic research. The µZ impedance tube system enables the reliable characterization of small membranes and meshes with diameters ranging from 1 to 3 mm up to 8 kHz. Our ACME software handles data acquisition and automatic calibration and includes built-in data analysis capabilities. Both the measurement system and the software are designed to speed up measurement processes in laboratories and eliminate the need for manual data processing.
