Method and system for measuring a wideband loop sensitivity for an acoustic transducer
US11112387B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Oct 9, 2019 |
| Grant date | Sep 7, 2021 |
| Priority date | — |
| Expiry date | Jan 10, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N29/46
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and system is disclosed for measuring a wideband loop sensitivity SL(f) for an acoustic transducer in an acoustic probe. A pulse signal is employed as a wideband reference signal Vr(t); and, in a pulse-echo measurement a corresponding wideband echo signal Ve(t) is obtained. A normalized loop frequency response {circumflex over (X)}(f) for the acoustic transducer is defined as a ratio of a Fourier Transform of the Ve(t) to a Fourier Transform of the Vr(t). A wideband loop sensitivity SL(f) for the acoustic transducer is defined as an absolute square of the {circumflex over (X)}(f) in decibel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.