Product Details
Product Introduction
The transfer function absorption coefficient measurement system consists of an impedance tube, an AWA5871 power amplifier, an AWA6290B multi-channel noise and vibration analyzer, a 1/4 "microphone pair with strict phase pairing, and analysis software. It can measure the sound absorption coefficient of sound-absorbing materials under normal incidence conditions, which is faster than the standing wave ratio method. Impedance tubes are divided into three types based on their diameter and purpose: AWA8551 impedance tube, AWA8551A impedance tube, AWA8551T transmission loss tube, and AWA8551AT transmission loss tube.
Product Features
l Compliant with standard: GB/T 18696.2-2002 (ISO 10534-2:1998) "Measurement of sound absorption coefficient and acoustic impedance in acoustic impedance tubes - Part 2: Transfer function method"
l Dual microphone transfer function method
l Multiple pipe diameters, multiple microphone spacing, wide frequency range for measurement
l Strict phase pairing, low lower limit frequency
l Only small samples are needed
l Easy sample installation and disassembly
l The back cavity of the sample can be adjusted
l High testing efficiency and measurement accuracy
l Complete measurement parameters and the ability to export and automatically generate reports
Main functions
1. The software prompts are rich in information, and users can easily complete testing under the guidance of the software
2. The spacing between microphones and the distance from the microphone to the material allow users to input their own measurements
3. It is possible to automatically concatenate the sound absorption or insulation characteristic curves of different frequency bands
4. Can memorize multiple curves for easy comparison during product improvement
5. You can calculate the average of multiple curves and draw the average curve
6. A white noise signal generator with an equalizer can ensure an ideal signal-to-noise ratio
product image

All product images are provided by the manufacturer; Please refer to the actual item received!
Specifications
Model parameters |
AWA8551type Impedance tube |
AWA8551Atype Impedance tube |
AWA8551Ttype Soundproof pipe |
AWA8551ATtype Soundproof pipe |
frequency range |
50Hz-6.4kHz |
100Hz-3.2kHz |
50Hz-6.4KHz |
100Hz-3.2kHz |
Measurement of sound absorption coefficient |
have |
have |
have |
have |
Reflection coefficient measurement |
have |
have |
have |
have |
Acoustic impedance measurement |
have |
have |
have |
have |
Acoustic admittance measurement |
have |
have |
have |
have |
Transmission loss/sound insulation |
none |
none |
have |
have |
Configuration List
name |
50Hz-6.4kHz acoustic absorptivity measurements |
100Hz-3.2kHz acoustic absorptivity measurements |
50Hz-6.4kHz Sound absorption and insulation measurement |
100Hz-3.2kHz Sound absorption and insulation measurement |
AWA8551Impedance tube |
1set |
-- |
-- |
-- |
AWA8551AImpedance tube |
-- |
1set |
-- |
-- |
AWA8551TImpedance tube |
-- |
-- |
1set |
-- |
AWA8551ATImpedance tube |
-- |
-- |
-- |
1set |
1/4Measuring microphones |
1to |
1to |
2to |
2to |
AWA14614Epreamplifier |
2a |
2a |
4a |
4a |
AWA6290MDual channel analyzer |
1Taiwan |
1Taiwan |
-- |
-- |
AWA6290BFour channel analyzer |
-- |
-- |
1Taiwan |
1Taiwan |
AWA5871power amplifier |
1 |
1 |
1 |
1 |
Signal generation software |
1 |
1 |
1 |
1 |
1/3 OCTanalysis software |
2Channel authorization |
2Channel authorization |
4Channel authorization |
4Channel authorization |
FFTanalysis software |
2Channel authorization |
2Channel authorization |
4Channel authorization |
4Channel authorization |
Transfer function absorption coefficient measurement software |
1 |
1 |
1 |
1 |
Four microphone sound insulation measurement software |
-- |
-- |
1 |
1 |
After-sales service guarantee
l If there is a quality issue with the product and objections are raised within 7 days of sale and the product is not damaged, the China US Instrument Mall is responsible for unconditional free returns and exchanges;
l This product comes with a nationwide warranty, with a warranty period of 1 year (consumables are not covered by the warranty);
l If there are any quality issues with the product during the warranty period, free repairs will be provided (excluding improper use); Provide long-term technical support outside the warranty period, no maintenance fees will be charged, only basic accessory fees and related fees will be charged at discretion;
l For all product after-sales issues, please contact our company directly. Our after-sales service team will respond and handle them within 30 minutes.
