- Country of manufactureDenmark
- Microphone typeCondenser
The folding lattices combining the big measuring area and simplicity of transportation are applied to measurement of large-size sources of noise out of rooms. The lattice can be or completely flat, or its beams can be directed at an angle, forming a cone which allows to suppress the external, going from back part of a lattice noise at a size up to 10 dB depending on frequency.
Folding semicircular lattices are applied when reflections from the earth have significant effect, for example, when measurements are carried out near the car at test for journey or when modeling the movement of the high-speed train in a wind tunnel.