Product Description
ACC acoustic wedge is a specialized acoustic device designed to absorb sound waves and minimize their reflection.
Here is a detailed description of it:
Composition: It consists of a base and a wedge part. The base is the part with a constant cross-section at the bottom, while the tip part refers to the part where the cross-section gradually increases from the pointed end.
Classification by the number of unit wedges: It can be divided into single wedge and double wedge.
Sound absorption principle:Wedges are typically made of porous sound-absorbing materials, which contain a large number of tiny pores and channels inside. When sound waves enter the material, they cause friction between air molecules and the pore walls, induce viscous movement of the air, and set the material fibers in vibration. Through these processes, sound energy is converted into heat energy and dissipated.
There are two types of acoustic wedges: metallic and fabric:
NCC Metallic Acoustic Wedge:
· NCC metallic acoustic wedges are mainly pointed double wedges.
· The exterior material is metal, and the production process requires bending, grinding, and then using the baking paint process for better durability.
· By virtue of the physical properties of metal, it has the advantages of corrosion resistance, flame retardant, and high stability.
NCC Cloth Acoustic Wedge:
· NCC cloth acoustic wedges are mainly pointed double wedges.
· The exterior material just needs to be made into a cloth cover and filled with the material.
· While retaining efficient sound absorption capabilities, the fabric outer layer makes it easier to blend into interior decoration styles, and it is lightweight for installation.
Finished Anechoic Chamber
Application Scenarios
Anechoic chambers are mainly used in fields with extremely high requirements for acoustic testing accuracy and noise control. these include:
- Research institutions: Calibrating acoustic instruments, testing the sound absorption and studying acoustic wave characteristics;
- Electronics enterprises: Testing the acoustic performance of products such as headphones, speakers, and mobile phones;
- Transportation field: Measuring the component noise and sound insulation effect of automobiles, subways, etc.;
- Environmental protection agencies: Calibrating noise monitoring instruments and verifying the effect of noise reduction equipment.
Our Advantages
Core advantages of anechoic chambers:
· Excellent acoustic isolation: creates an extremely low background noise environment and blocks external interference.
· Precise acoustic testing: reliably measures product acoustic parameters and supports research.
· Wide applicability: covers multiple industries and can be customized as needed.
· Enhanced R&D efficiency: facilitates product noise reduction optimization and compliance certification.
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.
Test 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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