What function does the windscreen serve for the microphone on a dosimeter?

The windscreen's primary function on a microphone for a dosimeter is to mitigate the effect of wind noise. When microphones are exposed to outdoor environments, wind can create unwanted noise that interferes with the intended sound measurements. The windscreen, typically made from foam or other porous materials, helps to reduce this wind-induced noise by disrupting the airflow around the microphone, thereby preventing wind from directly hitting the microphone capsule. This allows for more accurate sound level monitoring without the distortion that wind can introduce, ensuring the dosimeter captures the true sound levels more effectively.