Frequency broadband measurement of the characteristics of acoustic waves
US5035144A · kind A · utility
35Cited by
5References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 31, 1989 |
| Grant date | Jul 30, 1991 |
| Priority date | — |
| Expiry date | Jul 31, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/103
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Frequency broadband measurement of the characteristics of acoustic waves propagating in an object is disclosed. A time domain signal processing is described, based on narrow-band filtering of wide-band acoustic wave pulses and cross-corelation which permits to measure both phase and group velocities as a function of frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.