Vibration sensor for obtaining signals with high signal-to-noise ratio
US11467027B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Sep 15, 2020 |
| Grant date | Oct 11, 2022 |
| Priority date | — |
| Expiry date | Nov 28, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R31/003
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A vibration sensor is designed to have a pressure-enhancing member, a pressure sensing device and first, second, third chambers. A first through hole is designed to enable the first chamber to be vented to the third chamber such that the first chamber is combined with the third chamber to obtain a communicable air volume. When the pressure-enhancing member is moved to squeeze the air in the second chamber, a sensitivity of the pressure sensing device will be greatly improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.