Sound absorption coefficient testing mechanism for anechoic chambers, sound insulation performance testing

The anechoic chamber is the core environment for acoustic testing, and its detection directly affects the accuracy of acoustic index measurement. Through professional acoustic testing, indoor sound insulation and absorption performance can be evaluated, ensuring the elimination of environmental noise interference and obtaining accurate acoustic data in product testing such as automobiles, home appliances, and acoustic equipment. This provides a scientific basis for optimizing product noise reduction and is an important guarantee for acoustic research and quality control.

[Scope of Detection]

By application scenario: automotive acoustic testing anechoic chamber, home appliance noise detection anechoic chamber, headphone audio anechoic chamber, building acoustic anechoic chamber by structural type: full anechoic chamber, semi anechoic chamber, reverberation chamber, soundproof chamber by test object: large equipment anechoic chamber, small device anechoic chamber, precision acoustic anechoic chamber

Sound insulation, absorption coefficient, background noise level, cutoff frequency, acoustic field uniformity, reverberation time, sound pressure level, sound power level, frequency response, sound insulation performance, structural stability, ventilation noise reduction effect, vibration control performance

GB/T 19889 Building Acoustics - Measurement of Sound Insulation

GB/T 20247 Acoustics - Measurement of Sound Absorption in Reverberation Chambers

GB/T 3241 Acoustics - Octave and Fractional Octave Filters

ISO 3745 Determination of acoustic power levels in reverberation chambers

GB/T 18696 Acoustic Impedance Tube - Measurement of Sound Absorption Coefficient and Acoustic Impedance

【 Instruments and Equipment 】

Currently equipped with X-ray fluorescence spectrometer (XRF), Abbe refractometer, closed flash point automatic analyzer, infrared spectrometer (IR), flame photometer, rapid solvent extractor, inductively coupled plasma spectrometer (ICP), inductively coupled plasma mass spectrometer (ICP-MS), headspace gas chromatography-mass spectrometry (HS-GCMS), trap headspace gas chromatography-mass spectrometry (PT-GCMS), constant temperature and humidity system, ion chromatography (IC), gas chromatography (GC), gas chromatography-mass spectrometry (GCMS), gas chromatography-mass spectrometry (pyrolysis) GC-MS (PY), thermal desorption GCMS, oscillopolarography, balance, microwave digestion, etc. Instrument, Micro Infrared Spectrometer (FT-IR), Microscope, Rotary Evaporator, Liquid Chromatography Tandem Mass Spectrometer (LC-MS), UV Visible Spectrophotometer (UV) Liquid chromatography, atomic fluorescence spectroscopy (AFS), fluorescence whiteness meter, atomic absorption spectroscopy (AAS).

【 Qualification Certificate 】

We have obtained qualification certificates for inspection and testing institutions (CMA qualification certificate), laboratory accreditation certificate of China National Accreditation Service for Conformity Assessment (CNAS qualification certificate), assessment qualification certificate for agricultural product quality and safety testing institutions (CATL qualification certificate), quality management system, environmental management system, occupational health and safety management system certification, etc. The Anhui Qingxi Judicial Appraisal Institute, a directly affiliated institution, has been granted a judicial appraisal license and has passed 34 capability verifications by the Judicial Appraisal Science Research Institute.

Our institute produces over 20000 reports annually and serves more than 45000 clients, including corporate units, universities and research institutes, Fortune 500 companies, multinational corporations, etc.

Sound absorption coefficient testing mechanism for anechoic chambers, sound insulation performance testing