| 发明名称 |
Device for measuring sound level |
| 摘要 |
A device for measuring sound level, comprising: an inlet opening; a MEMS microphone for measuring sound level; and an external acoustic attenuator with a pressure divider comprising: a first branch between the inlet opening and the membrane of the MEMS microphone via an inlet channel and a resonant cavity; and a second branch between the resonant cavity and a vent chamber via a vent channel. |
| 申请公布号 |
US9510117(B2) |
申请公布日期 |
2016.11.29 |
| 申请号 |
US201414519206 |
申请日期 |
2014.10.21 |
| 申请人 |
SVANTEK SP. ZO.O. |
发明人 |
Barwicz Wieslaw;Leoniak Ryszard;Lukaszewski Lukasz;Kuzmiszyn Grzegorz |
| 分类号 |
H04R19/04;H04R29/00;H04R1/20;H04R1/22;H04R19/00 |
主分类号 |
H04R19/04 |
| 代理机构 |
|
代理人 |
Friedman Mark M. |
| 主权项 |
1. A device for measuring sound level, comprising:
an inlet opening; a MEMS microphone for measuring sound level; and an external acoustic attenuator with a pressure divider comprising:
a first branch between the inlet opening and the membrane of the MEMS microphone via an inlet channel and a resonant cavity; anda second branch between the resonant cavity and a vent chamber via a vent channel, wherein the pressure divider comprises a dumping material layer mounted between the inlet opening of the external acoustic attenuator and the resonant cavity, wherein the resonant cavity splits to the inlet channel and a vent channel coupled with a vent chamber. |
| 地址 |
Warsaw PL |
