ACOUSTIC IMPEDENCE DUCT

MEASURING SOUND ABSORPTION AND TRANSMISSION WITHOUT THE USUAL HASSLES

Acoustic Impedance Duct

The Acoustic Duct provides an easy and cost effective way of measuring absorption coefficient and transmission loss in acoustical materials and automotive parts as mufflers.

Under traditional approaches, a reverberation room, an anechoic chamber, expensive equipment, large samples and skilled personnel are required, resulting in high costs and time loss in preparation. With this product, there will be no need for specialized rooms nor huge, expensive specimens. The intelligent design utilizes two- or four-microphone methods in a duct to produce plane waves such that acoustical properties over a wide frequency range could be determined from small samples.

What the Acoustic Duct can do
 Reduces cost and time lost on preparing reverberation and anechoic rooms as well as large specimens
 Minimizes the time-to-market through the easy manageability of the system which allows for measurements to be taken conveniently
 Tests and analyzes multi-layer materials for acoustic absorption or insulation
 Measures muffler transmission loss without flow

Features
 Complete system without need of any other FFT analyzer
 Capable of capturing frequencies between 100Hz and 6400Hz
 Portable system, simple operation and easily manageable process allows quick and repeatable measurements
 Intelligent interface allows individual tests to be compared on same graph
 Easy data transfer in text file, bitmap, EXCEL, ESV formats

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