Technical Column
VSAC（Vehicle Semi-Anechoic Chamber）
2025年5月23日
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- VSAC（Vehicle Semi-Anechoic Chamber）
Acoustic Power Measurement
A VSAC (Vehicle Semi-Anechoic Chamber) is a semi-anechoic room specifically designed for the measurement and evaluation of the acoustic properties of automobiles and other vehicles.
It is primarily used as a measurement facility to investigate and improve vehicle noise, vibration, and acoustic characteristics in detail.
Currently, the global demand for VSACs is increasing due to the establishment of related standards and growing evaluation needs.
- Semi-Anechoic Chamber:
A testing room that blocks external noise with sound insulation layers and minimizes internal sound reflections with sound-absorbing layers. - Evaluation of Acoustic Properties:
A VSAC is used to evaluate various acoustic properties emitted by vehicles, such as noise, vibration, engine sounds, and wind noise.
This evaluation is crucial for enhancing vehicle acoustic performance, ride comfort, and overall driving experience. - Testing and Certification:
Automotive manufacturers and related companies use VSACs to measure vehicle acoustic properties and ensure compliance with regulatory standards and industry norms.
This includes verifying conformity with legal regulations and standards, which vary by country and region.
Such VSACs for acoustic measurement play a vital role in the automotive development and design process, contributing to product quality improvement and ensuring market compatibility.
We are capable of providing comprehensive proposals for measurement rooms and measurement systems.
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Contact Us
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Moritani Shokai
(Machinery Department No. 2, Tokyo Head Office)
Introduction of the Manufacturer
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Hottinger Bruel & Kjaer
HHBK is a merger of two companies: Brüel & Kjær of Denmark and HBM of Germany.
Brüel & Kjær is one of the world’s leading manufacturers of acoustic and vibration measurement instruments, known as a total measurement chain supplier.Learn more about HBK
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Sonora Technology Co., Ltd.
Sonora Technology is a leading Japanese manufacturer of industrial anechoic chambers and anechoic boxes.
From design and manufacturing to installation and acoustic performance assurance, Sonora provides fully integrated solutions to build complete acoustic measurement environments from the ground up.Learn more about Sonora
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