Product Description
The anechoic chamber is a precision testing facility created through professional acoustic engineering. By means of a closely arranged array of anechoic wedges, multi-layer soundproof materials, and a sealing system, it can efficiently isolate external noise, absorb sound reflections indoors, and create a low-background-noise environment. It is widely applied in fields such as acoustic research and the noise performance testing of products.
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.
Finished Anechoic Chamber
Semi-anechoic Chamber (Built with metallic anechoic wedges)
Fully Anechoic Chamber (Built with fabric anechoic wedges),
Application
Electronics Research and Development:
Performance testing for electroacoustic devices, electromagnetic compatibility testing for equipment
Medical Equipment:
Acoustic calibration for ultrasonic diagnostic equipment, precision adjustment for hearing aids, low-noise certification for medical devices
Security and Surveillance:
Noise reduction testing for monitoring sound pickup equipment, anti-interference capability evaluation for alarm sensors
Acoustic Materials:
Performance testing for sound-absorbing and soundproof materials, environmental adaptability analysis for materials
Music and Recording:
Acoustic field design for professional recording studios, acoustic quality testing for musical instruments
Architectural Acoustics:
Acoustic field simulation and optimization for theaters and concert halls, soundproof performance testing for buildings
Aerospace:
Noise characteristic analysis for aircraft engines, electromagnetic compatibility testing for airborne equipment
Automotive and Transportation:
Noise testing for complete vehicles, interior noise control evaluation for rail transit vehicles
Industrial and Home Appliances:
Noise emission certification for industrial machinery, noise reduction performance testing for household appliances
Our Advantages
Flexible Customization:
Can be customized in size, shape, materials (e.g., surface treatment for metallic anechoic wedges), and installation methods to adapt to different spatial layouts and building structures.
Strong Environmental Compatibility:
Integrates environmental control for temperature, humidity, air cleanliness, and other factors, ensuring stability under complex testing conditions.
Convenient and Diverse Installation:
Supports flexible installation methods such as roof suspension and wall mounting, suitable for the structural design and space utilization of fully anechoic or semi-anechoic chambers.
Stable Material Performance:
Uses long-lasting sound-absorbing materials like rock wool and glass fiber cotton, along with durable surface materials such as galvanized steel and stainless steel, to maintain sound absorption and noise insulation over time.
Electromagnetic Interference Shielding:
Some anechoic chambers can simultaneously isolate electromagnetic interference, meeting the dual environmental requirements for electromagnetic compatibility testing of high-end electronic devices.
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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