有价值:
Zircon - Loudspeaker-Microphone Probe
The Zircon is a loudspeaker-microphone probe for measuring in situ the absorption and reflection properties of surfaces. These may be indoor surfaces, such as in concert halls and gyms, or outdoor surfaces, such as road surfaces (ISO 13472-1), sound barriers installed in a free field (NF S 31-089) and traffic noise reducing devices (ENV 1793-5).
Using the wall measurement stand, the Zircon can be rotated horizontally and vertically, and is provided with 10° step angle indications. When using the floor measurement stand, the Zircon can be rotated vertically over 360°. |