Product Description
Anechoic Chamber is a precision testing facility designed to achieve a low-background-noise environment through professional acoustic engineering. Its core structure features a densely packed anechoic wedge array, combined with multi-layer soundproof materials and a sealing system, which effectively isolate external noise and absorb indoor sound reflections.
We are not only a factory, we can provide a one-stop service from design, production, installation and delivery.
Requirement analysis:
1.Determine the purpose |
Firstly, it is necessary to clarify the specific purpose of the anechoic chamber, such as acoustic metrology, equipment noise testing, etc |
| 2.Environmental requirements: |
Analyze the required environmental control conditions, including the surrounding environment, temperature and humidity, and air cleanliness, etc |
Design phase
1.High performance sound insulation design: |
The soundproof chamber must have extremely high sound insulation performance to effectively isolate external noise and ensure the accuracy and reliability of test data. |
| 2.Flexibility and Scalability: |
When designing, it is necessary to consider the potential increase in testing equipment and requirements in the future, ensuring that the anechoic chamber has a certain degree of flexibility and scalability. |
| Construction arrangement |
Equipment installation: Install necessary acoustic testing equipment and environmental control systems |
Testing and Calibration
1.Functional testing: |
After construction is completed, a comprehensive functional test of the anechoic chamber will be conducted, including acoustic performance and environmental control effectiveness |
| 2.Calibration equipment: |
Use the free field comparison method to calibrate the sensitivity and frequency response of the microphone to ensure accurate test results |
Specification
Metallic Anechoic Wedge
· Surface Material: Galvanized steel, aluminium, stainless steel
· Filling Material: Sound-absorbing rock wool or glass fiber cotton
· Standard Height: 700mm, 800mm, 1150mm, 1200mm, 1450mm
(Cut-off frequencies vary with different heights and can be customized as needed.)
· Surface Treatment: Polyester Powder Coating (PPC) or original color of metal
· Application: High-precision and advanced laboratories, multi-functional halls, semi or fully anechoic chambers, etc.
Fabric Anechoic Wedge
· Frame Material: Metal support (Surface coating treatment)
· Surface Material: Polyester cloth, non-woven cloth
· Filling Material: Sound-absorbing rock wool or glass fiber cotton
· Standard Height: 300mm, 600mm
(Cut-off frequencies vary with different heights and can be customized as needed.)
· Finish: Impregnated with fire retardant
· Application: Test chambers, semi or fully anechoic chambers, etc.
Components
Metallic Anechoic Wedge
Fabric Anechoic Wedge
Finished Anechoic Chamber
Semi-anechoic Chamber (Built with metallic anechoic wedges)
Fully Anechoic Chamber (Built with fabric anechoic wedges),
Application
An anechoic chamber is a special type of laboratory that is widely used in multiple fields. Its main function is to eliminate the interference of external sound waves and electromagnetic waves, providing an ideal environment for experiments. The following are the main application areas of silent rooms:
1.Precision Acoustic Measurement
Performance testing of electroacoustic devices such as speakers, microphones, and headphones.
Sound power level measurement of noise sources like aero engines and automotive components.
2.Scientific Research and Teaching
Research on acoustic theory.
Basic acoustic experiments in university laboratories or research institutions.
3.Requirements of Special Industries
Noise radiation testing of spacecraft, missiles, etc. in a free-field environment.
Electromagnetic compatibility testing of high-end electronic devices.
4.Automotive and Transportation Field
Noise testing of complete vehicles or vehicle components.
Evaluation of the interior noise in rail transit vehicles.
5.Home Appliances and Industrial Equipment
Noise certification of household appliances such as air conditioners, refrigerators, and washing machines.
Noise emission testing of industrial machinery.
Our Advantages
NCC Anechoic wedge can absorb sound waves of different frequencies, maintaining a stable sound absorption effect from low frequencies to high frequencies. Moreover, it can be hung on the roof or installed on the wall according to actual needs. The installation methods are flexible and diverse, capable of adapting to different spatial layouts and building structures.
We can designe any size,any shape and with any color. All customized. Just contact with us, we have a team to meet all your requests.
Product Parameters
The sound absorption coefficient of the metallic sound absorption wedge at the center frequency of the 1/3 octave band within the range of 50Hz - 400Hz
| f/Hz |
α |
| 50 |
0.922 |
| 63 |
0.956 |
| 80 |
0.975 |
| 100 |
0.982 |
| 125 |
0.994 |
| 160 |
0.998 |
| 200 |
0.997 |
| 250 |
1.000 |
| 315 |
0.997 |
| 400 |
0.994 |
Model: NAW 1200
Laboratory testing
NCC Acoustic Laboratory - A Laboratory Professionaly Committed to Serving Customers
In order to ensure that our products meet the performance requirements, we make a pre production sample of each product before mass production, and conduct relevant performance tests in our factory's own laboratory to ensure that the products we produce fully meet the customer's requirements and ensure the smooth acceptance of the customer's project.
Testing Report
Metallic Acoustic Wedge Fabric Acoustic Wedge
Company Profile
NCC is a supplier of noise control services and acoustic products. We have developed multiple sets of noise control solutions in various fields such as aerospace, commercial buildings, medical audiometry, industrial engineering, power equipment, subways and tunnels, performing arts buildings, and noise reduction laboratories. We provide customers with electric audiometry rooms, semi anechoic rooms, silent rooms, shielded rooms, listening rooms, fireproof soundproof doors, ventilation silencers, exhaust silencers, and noise reduction louvers Comprehensive professional services and technical support for the design, manufacturing, and installation of cooling tower noise control.
Over the years, NCC has developed into a turnkey supplier of noise control, providing customers with one-stop solutions from concept to completion, including solution consulting, synchronous research and development, construction drawing design, structural design, fluid calculation, air conditioning and electrical system engineering, product manufacturing, installation and commissioning, and testing and acceptance services. With over 70 years of experience in noise control and acoustic engineering, we will provide you with solutions that meet your needs and budget. We look forward to working with you.
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