High Precision Anechoic Chamber

High Precision Anechoic Chamber

The high-precision laboratory is mainly designed and tested according to GB6882 and gb4214.l, and the national institute of metrology shall make on-site measurement of the listed technical indicators according to national standards, and the metrological unit shall issue the appraisal report and measurement certificate

1. Model
 The laboratory includes two categories of products, ordinary silencer chamber and precision silencer chamber
Ordinary silencer room: 

1) Ordinary silencer chamber
the silencer room is equipped with wave cotton and micro-hole sound absorbing metal plate, and the sound insulation effect is 40-20db

2) Precision level silencer room 
sound absorption sharp split is installed on the wall of the silencer room.it has good acoustic effect, high precision and indoor background noise is lower than 15dB

2. Scope of application 
The laboratory can be used for testing various specifications of IT products, household appliances and similar appliances

3.characteristics
1) Acoustic splitting:
The material is made of high quality centrifugal blown glass wool board, cold-drawn steel wire welded structure skeleton, the surface is sprayed with plastic anti-rust treatment, the splitting is two, the outer layer is white fireproof cloth, the splitting length is 600mm, the wall cavity is 200mm

2) Indoor lighting:
Equipped with power supply (220V,380V) power supply box, power supply and lighting by outdoor control.

3) Structure:
double-layer sound insulation wall structure, the foundation between the vibration isolation and sound absorption cotton
Glottis insulation: double-layer glottis insulation (all-steel fire door) is adopted, that is, the absorption glottis between the inner sound insulation and the outer sound insulation, with the size of 1000×1800MM

4.Performance parameters
Background noise: in the absence of abnormal interference, the minimum measurable noise is 25dB (A)
Free sound field accuracy: in accordance with gb6882-86, gb4214.1-99, ISO3735, GB/T17429.1
Low frequency cut-off frequency: less than 125Hz
Natural frequency of vibration isolation system: less than 8Hz

5.Other requirements
1) Customized design can be made according to customer requirements
2) Optional assembly: air conditioning, closed-circuit television monitoring, automatic door, visual observation window, inlet and exhaust noise elimination system, test bracket, measurement test report, etc.

6. pictures for reference
(The following pictures are from the implementation case of Heritop)







7.Cooperative client
For more than ten years, we have been providing competitive equipment and technical services to the following cooperative customers and gaining their trust

8. Our factory

HeriTop factory is located in Zhaoqing high tech development Zone, Guangdong Province, China,covering an area of 5000 square meters. It is equipped with parts manufacturing workshop, assembly workshop, commissioning workshop, laboratory, exhibition center, etc.