EP3850615A4 - Stealth applications of acoustic hyperabsorption by acoustically dark metamaterial cells - Google Patents
Stealth applications of acoustic hyperabsorption by acoustically dark metamaterial cells Download PDFInfo
- Publication number
- EP3850615A4 EP3850615A4 EP19859064.8A EP19859064A EP3850615A4 EP 3850615 A4 EP3850615 A4 EP 3850615A4 EP 19859064 A EP19859064 A EP 19859064A EP 3850615 A4 EP3850615 A4 EP 3850615A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- hyperabsorption
- acoustically
- acoustic
- dark
- metamaterial cells
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
- G10K11/165—Particles in a matrix
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201816132402A | 2018-09-15 | 2018-09-15 | |
PCT/US2019/051127 WO2020056337A1 (en) | 2018-09-15 | 2019-09-13 | Stealth applications of acoustic hyperabsorption by acoustically dark metamaterial cells |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3850615A1 EP3850615A1 (en) | 2021-07-21 |
EP3850615A4 true EP3850615A4 (en) | 2022-06-15 |
Family
ID=69778550
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19859064.8A Withdrawn EP3850615A4 (en) | 2018-09-15 | 2019-09-13 | Stealth applications of acoustic hyperabsorption by acoustically dark metamaterial cells |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3850615A4 (en) |
WO (1) | WO2020056337A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021116923A1 (en) * | 2019-12-10 | 2021-06-17 | Saudi Arabian Oil Company | Electromagnetic metamaterial cells, detectors comprising the same, and methods of their use |
KR102387310B1 (en) * | 2020-04-06 | 2022-04-18 | 한국표준과학연구원 | Metasurface having exposed smooth side and method for designing the same |
CN113450751B (en) * | 2021-05-11 | 2024-05-31 | 科大讯飞股份有限公司 | Acoustic packet control method, apparatus, and computer-readable storage medium |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9324312B2 (en) * | 2007-12-21 | 2016-04-26 | 3M Innovative Properties Company | Viscoelastic phononic crystal |
WO2017075187A2 (en) * | 2015-10-30 | 2017-05-04 | Massachusetts Institute Of Technology | Subwavelength acoustic metamaterial having tunable acoustic absorption |
US20180024265A1 (en) * | 2016-07-20 | 2018-01-25 | Baker Hughes Incorporated | Rhodonea cell acoustic hyperlens for thru-casing ultrasonic sensors |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10054707B2 (en) * | 2016-04-15 | 2018-08-21 | Baker Hughes, A Ge Company, Llc | Bipolar acoustic hyperlens for dual-string thru-casing ultrasonic sensors |
-
2019
- 2019-09-13 EP EP19859064.8A patent/EP3850615A4/en not_active Withdrawn
- 2019-09-13 WO PCT/US2019/051127 patent/WO2020056337A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9324312B2 (en) * | 2007-12-21 | 2016-04-26 | 3M Innovative Properties Company | Viscoelastic phononic crystal |
WO2017075187A2 (en) * | 2015-10-30 | 2017-05-04 | Massachusetts Institute Of Technology | Subwavelength acoustic metamaterial having tunable acoustic absorption |
US20180024265A1 (en) * | 2016-07-20 | 2018-01-25 | Baker Hughes Incorporated | Rhodonea cell acoustic hyperlens for thru-casing ultrasonic sensors |
Non-Patent Citations (4)
Title |
---|
GAO NANSHA ET AL: "Acoustic Metamaterials for Noise Reduction: A Review", ADVANCED MATERIALS TECHNOLOGIES, 29 January 2022 (2022-01-29), DE, pages 2100698, XP055910463, ISSN: 2365-709X, Retrieved from the Internet <URL:https://onlinelibrary.wiley.com/doi/full-xml/10.1002/admt.202100698> [retrieved on 20220411], DOI: 10.1002/admt.202100698 * |
See also references of WO2020056337A1 * |
SHEN CHEN ET AL: "Broadband Acoustic Hyperbolic Metamaterial", PHYSICAL REVIEW LETTERS, vol. 115, no. 25, 1 December 2015 (2015-12-01), US, XP055911328, ISSN: 0031-9007, Retrieved from the Internet <URL:http://link.aps.org/article/10.1103/PhysRevLett.115.254301> [retrieved on 20220411], DOI: 10.1103/PhysRevLett.115.254301 * |
Y. CHENG ET AL: "Ultra-sparse metasurface for high reflection of low-frequency sound based on artificial Mie resonances", NATURE MATERIALS, vol. 14, no. 10, 31 August 2015 (2015-08-31), London, pages 1013 - 1019, XP055288152, ISSN: 1476-1122, DOI: 10.1038/nmat4393 * |
Also Published As
Publication number | Publication date |
---|---|
EP3850615A1 (en) | 2021-07-21 |
WO2020056337A1 (en) | 2020-03-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
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17P | Request for examination filed |
Effective date: 20210331 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
A4 | Supplementary search report drawn up and despatched |
Effective date: 20220513 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: G10K 11/165 20060101ALI20220509BHEP Ipc: G10K 11/36 20060101ALI20220509BHEP Ipc: G10K 11/30 20060101ALI20220509BHEP Ipc: G10K 11/172 20060101ALI20220509BHEP Ipc: G10K 11/162 20060101ALI20220509BHEP Ipc: G10K 11/16 20060101AFI20220509BHEP |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20221213 |