This study deals with microbarograph systems for the detection of infrasonic waves.
An essential part of these systems is a noise reducer, which consists of a spatial structures of pipes or hoses designed to level out the noise from small scale wind turbulence.
This is acieved by spatial integration.
Infrasound signals are hardly attenuated.
Noise reducing structures are important for the low noise operation of infrasonic arrays.
HW Haak, GJ de Wilde. Microbarograph Systems for the infrasonic detection of nuclear explosions