A system and method of determining porosity in composite materials using ultrasound
Abstract
This record has no abstract on file.
Term
No projected expiry on record.
- Priority
- Published
- Filed
- Today
1 claim: 1 independent, 0 dependent
- 1referansebakveggultralydsignalet bestemmes så. Oppfinnelsen omfatter videre beregning av ultralydsvekkelsen av prøveultralydsignalet som forholdet mellom prøvefrekvensspekteret og referansefrekvensspekteret over et forhåndsbestemt frekvensområde. Sammenligning av de beregnede ultralydsvekkelsene med forhåndsbestemte svekkelsesstandarder, gjør det mulig å evaluere porøsiteten til prøvekomposittmaterialet.
1 paragraph, as filed
The invention provides ultrasonic measurement of the porosity of a sample composite material with access to only one side of the sample composite material and includes the steps of measuring a sample ultrasonic signal from the sample composite material, normalizing the sample ultrasonic signal relative to the surface echo of the sample composite material, and isolating a sample back wave signal from the sample composite material, and isolating a sample back wave signal from the sample composite material, and isolating a sample back wave signal from the sample composite signal, and isolating a sample back wave signal from the sample composite signal. A sample fixture spectrum of the sample backwave ultrasonic signal is then determined. Then, the method and system includes the steps of measuring a reference ultrasonic signal from a reference composite material, normalizing the refractory ultrasonic signal relative to the surface echo of the reference composite material, and isolating a reference back wave signal from the sample ultrasonic signal. A reference frequency spectrum of
15 members in 9 offices
Priority claims8
| Document | Office | Kind | Date |
|---|---|---|---|
| 21834100 | United States of America | P | |
| 21834100 | United States of America | P | |
| 0122156 | United States of America | W | |
| 0122156 | United States of America | W | |
| 218341 | – | – | – |
| PCTUS0122156 | – | – | – |
| US20000218341P | – | – | – |
| WO2001US22156 | – | – | – |
Members15
| Document | Office | Kind | |
|---|---|---|---|
| CA2411628A1 | Canada | A1 | |
| NO20030183LThis record | Norway | L | |
| WO0206814A2 | World Intellectual Property Organization (WIPO) | A2 | |
| AU2295502A | Australia | A | |
| US2002066318A1 | United States of America | A1 | |
| WO0206814A3 | World Intellectual Property Organization (WIPO) | A3 | |
| NO20030183D0 | Norway | D0 | |
| KR20030015389A | Republic of Korea | A | |
| EP1301778A2 | European Patent Office (EPO) | A2 | |
| IL153807A0 | Israel | A0 | |
| US6684701B2 | United States of America | B2 | |
| JP2004515748A | Japan | A | |
| CA2411628C | Canada | C | |
| JP4789394B2 | Japan | B2 | |
| EP1301778B1 | European Patent Office (EPO) | B1 |
1 legal event, as the office reported them to INPADOC
Events
| Event | Code | |
|---|---|---|
| Withdrawal, rejection or dismissal of laid open patent applicationFC2A | FC2A |
Numbers
- Publication, DOCDB
- 20030183
- Publication, EPODOC
- NO20030183L
- Application
- 183
- Application, DOCDB
- 20030183
- Application, EPODOC
- NO20030000183
Titles2
- Norwegian
- Fremgangsmate og system for a bestemme porositeten i komposittmaterialer ved hjelp av ultralyd
- English
- Method and system for determining the porosity of composite materials by ultrasound
Classification
- CPC, 11
- G01N29/30
- G01N29/46
- G01N29/11
- G01N29/2418
- G01N29/449
- G01N2291/014
- G01N2291/0231
- G01N2291/0245
- G01N2291/0289
- G01N2291/0421
- G01N2291/044
- IPC, 5
- G01N29 00
- G01N15 08
- G01N29 11
- G01N29 24
- G01N29 46