Acoustic vector sensor having an accelerometer with in-band resonant frequency
US9016129B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 2009 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | May 18, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/181
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Low cost miniature vector sensors are provided. An acoustic vector sensor is provided that comprises at least one accelerometer to measure at least one component of acoustic particle acceleration, wherein the at least one accelerometer has a resonant frequency within a measurement band of the acoustic vector sensor. In addition, a method is disclosed for measuring an acoustic signal. The method comprises the steps of configuring an array of acoustic vector sensors comprised of at least one accelerometer to measure at least one component of acoustic particle acceleration; operating the at least one accelerometer at a resonant frequency within a measurement band of the acoustic vector sensor; and generating a voltage using one or more of the acoustic vector sensors representative of the acoustic signal as the acoustic signal propagates past the array. The voltage optionally indicates a bearing of the acoustic signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.