| 摘要 |
A device for measuring sound level by a MEMS microphone (12, 152, 252), characterized in that the MEMS microphone (12, 152, 252) is coupled with an acoustic attenuator (11) comprising a pressure divider (120, 220) configured to limit the acoustic pressure which reaches a membrane of the microphone (152, 252) via an inlet channel (205) and a resonant chamber (144, 225). |
