Transmission loss tube kit and two impedance tube kits solution for measuring the acoustical properties of noise control materials in accordance with ISO 10534-2, ASTM E1050 - 12 and ASTM E2611-17.
TYPE 4206
The transmission loss tube and impedance tube kits provide precision testing tubes equipped with microphones and sound sources.
To perform measurements, material samples are inserted into the tube. A loudspeaker in the tube then emits precisely quantified sound, and the microphones measure the sound pressure level at specific locations along the length of the tube. With PULSE software, you are able to quickly calculate the normal incident acoustic properties of the material based on frequency response functions measured between the various measurement locations.
These kits help you determine sound absorption coefficient and surface impedance by making measurements and calculations in compliance with ISO 10534-2, ASTM E1050 – 12, and transmission loss ASTM E2611 – 17.
Each one of our kits is optimized for specific parameters and methods.
Two-microphone transfer-function method:
Four-microphone transfer-function method:
See the product data for more information about each specific kit.
Whether materials are intended to absorb airborne sound or reduce airborne sound transmission, the acoustic designer or acoustician needs to know the effects of the acoustic materials. A material sample, or coupon test, is a quick and convenient method.
The impedance tube, or standing wave tube, guarantees highly reproducible testing conditions. Prior to testing, the signal-to-noise ratio (SNR) can be determined at each microphone position to ensure accurate results.
The acoustic characteristics of materials are determined in terms of absorption, reflection, impedance, and transmission loss.
Early in the development process of vehicle interiors and aircraft interiors, designers aiming for acoustic comfort need to predict what the acoustical impact will be of components such as trim lining, headliners, seats, and multi-panel systems.
This hardware and its associated software provide input to analytical and numerical tools for the prediction of the sound field in acoustic cavities such as vehicle cabins and aircraft cabins. These tools include finite element modeling (FEM) and the boundary element method (BEM).
Code | Name |
---|---|
-4206--- | Impedance Measurement Tube |
-4206-A-- | Impedance Tube Kit (100 Hz - 3.2 kHz) |
-4206-T-- | Transmission Loss Tube Kit (50- 6.4k Hz) |
-4206-W-003- | Type -4206-T-- w/o Preamplifier and Mic |
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, MicroStrain and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.