The acoustic chamber and measuring equipment allow to measure sound level from various equipment, including household, industrial, as well as special purpose equipment.
The workstation consists of a set of high-precision microphones, a multichannel signal level meter, a calibrator, a set of tripods for microphones fixing, an acoustic chamber and specialized software.
The chamber has a metal prefabricated panel structure. In order to assemble the panels, they should be transported into the room and mounted.
Panels are a fabricated block, made of special sound-absorbing material.
Design of the chamber allows mounting water conduit, sewage, and various telecommunications interfaces for testing a wide range of products.
The chamber is equipped with a ventilation system and a double-leaf door.
Special software allows to measure sound and noise levels, as well as perform vibration measurements.
Equipment can record signals with duration of several hours in real-time mode. The equipment has octave filters for filtering in accordance with the requirements of technical regulations.
Workstation fully meets the requirements of ANSI S1.4 and IEC 61672 for the equipment of class 1.
The equipment allows to measure sound intensity and the index of the intensity of residual sound pressure in real time mode, using standard microphones.
The sound power is an absolute measure for determining the noise produced by the equipment. All devices from PC fans to heavy equipment must meet the requirements of existing standards. This workstation completely copes with these tasks.
The chamber has a metal prefabricated panel structure. In order to assemble the panels, they should be transported into the room and mounted.
Panels are a fabricated block, made of special sound-absorbing material.
Design of the chamber allows mounting water conduit, sewage, and various telecommunications interfaces for testing a wide range of products.
The chamber is equipped with a ventilation system and a double-leaf door.
Special software allows to measure sound and noise levels, as well as perform vibration measurements.
Equipment can record signals with duration of several hours in real-time mode. The equipment has octave filters for filtering in accordance with the requirements of technical regulations.
Workstation fully meets the requirements of ANSI S1.4 and IEC 61672 for the equipment of class 1.
The equipment allows to measure sound intensity and the index of the intensity of residual sound pressure in real time mode, using standard microphones.
The sound power is an absolute measure for determining the noise produced by the equipment. All devices from PC fans to heavy equipment must meet the requirements of existing standards. This workstation completely copes with these tasks.
SYSTEM SPECIFICATIONS
| PARAMETER | VALUE |
|---|---|
| Operating frequency range | 16 Hz ÷ 16 kHz |
| Chamber outer dimensions |
• width: 7500 mm • length: 7500 mm • height: 5000 mm |
| Chamber noise floor | ≤ 18 dBA |
| Dynamic range | 16 ÷ 130 dB |
WORKSTATION COMPOSITION
| DESCRIPTION | |
|---|---|
| Acoustic chamber | |
| Multi-channel sound level meter | |
| Acoustic calibrator | |
| A set of high-sensitivity microphones | |
| Set of tripods for microphones fixing | |
| Software |
STANDARDS RELATING TO THE WORKSTATION
| SHORT DESIGNATION | FULL TITLE |
|---|---|
| IEC 61672-1-2013 | Electroacoustics — Sound level meters — Part 1. Specifications |
| GOST 17187-2010 | Regional standard. Sound level meters. Part 1. Specifications |
| IEC 60942-2003 | Electroacoustics — Sound calibrators |
| ISO 3741:2010 | Acoustics – Determination of sound power levels and sound energy levels of noise sources using sound pressure – Precision methods for reverberation test rooms |
| ISO 3742:1988 | Acoustics – Determination of sound power levels of noise sources – Precision methods for discrete-frequency and narrow-band sources in reverberation rooms |
| ISO 3743-1:2010 | Acoustics – Determination of sound power levels and sound energy levels of noise sources using sound pressure – Engineering methods for small movable sources in reverberant fields – Part 1. Comparison method for a hard-walled test room |
| ISO 3744:2010 | Acoustics – Determination of sound power levels and sound energy levels of noise sources using sound pressure – Engineering methods for an essentially free field over a reflecting plane |
| ISO 3745:2012 | Acoustics – Determination of sound power levels and sound energy levels of noise sources using sound pressure – Precision methods for anechoic rooms and hemi-anechoic rooms |
| ISO 3746:2010 | Acoustics – Determination of sound power levels and sound energy levels of noise sources using sound pressure – Survey method using an enveloping measurement surface over a reflecting plane |
| ISO 3747:2010 | Acoustics – Determination of sound power levels and sound energy levels of noise sources using sound pressure – Engineering/survey methods for use in situ in a reverberant environment |
| EN ISO 15744:2008 | Hand-held non-electric power tools – Noise measurement code – Engineering method (grade 2) |
| EN 12549:1999+A1:2008 | Acoustics. Noise test code for fastener driving tools. Engineering method |
