WO2023012590 - ONE-DIMENSIONAL INTERFEROMETRIC RAYLEIGH SCATTERING SYSTEM USING VIRTUALLY IMAGED PHASED ARRAY
National phase entry is expected:
Publication Number
WO/2023/012590
Publication Date
09.02.2023
International Application No.
PCT/IB2022/056901
International Filing Date
26.07.2022
Title **
[English]
ONE-DIMENSIONAL INTERFEROMETRIC RAYLEIGH SCATTERING SYSTEM USING VIRTUALLY IMAGED PHASED ARRAY
[French]
SYSTÈME DE DIFFUSION DE RAYLEIGH INTERFÉROMÉTRIQUE UNIDIMENSIONNEL UTILISANT UN RÉSEAU À COMMANDE DE PHASE VIRTUELLEMENT IMAGÉ
Applicants **
KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY
4700 King Abdullah University Science and Technology
Thuwal, 23955-6900, SA
Inventors
KRISHNA, Yedhu
4700 King Abdullah University Science and Technology
Thuwal, 23955-6900, SA
MAGNOTTI, Gaetano
4700 King Abdullah University of Science and Technology
Thuwal, 23955-6900, SA
Priority Data
63/230,173
06.08.2021
US
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
| Pages for Publication | * |
| Number of Pages with Drawings | * |
| Pages of Specification | * |
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International Searching Authority |
EPO
* |
| Applicant's Legal Status |
Legal Entity
* |
| * | |
| * | |
| * | |
| * | |
| Entry into National Phase under |
Chapter I
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| Translation |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing | 1327 | |
| EPO | Filing, Examination | 6497 | |
| Japan | Filing | 589 | |
| South Korea | Filing | 575 | |
| USA | Filing, Examination | 6910 |
Total: 15898 USD
The term for entry into the National Phase has expired. This quotation is for informational purposes only
Abstract[English]
A one-dimensional, 1D, interferometric Rayleigh scattering, IRS, system (100) for measuring a velocity of a gas flow (110) includes a housing (106) having an input optical port (106A) and an output optical port (106B), the input optical port (106A) being configured to receive a Rayleigh scattered signal (104-1) corresponding to Rayleigh scattering due to an interaction between the gas flow (110) and a laser beam (122), a virtually imaged phased array, VIPA, (102) located inside the housing (106) and configured to generate two-dimensional, 2D, light fringes (310) from the Rayleigh scattered signal (104-1), and first to fourth lenses (L1 to L4) configured to focus the 2D light fringes (310). The VIPA (102) has a body (202) made of a transparent material, and the body (202) is sandwiched between a totally reflective mirror (102A) and a partially reflective mirror (102B).[French]
Un système de diffusion de Rayleigh interférométrique (IRS) unidimensionnelle (1D) (100) permettant de mesurer la vitesse d'un écoulement de gaz (110) comprend un boîtier (106) doté d'un orifice optique d'entrée (106A) et d'un orifice optique de sortie (106B), l'orifice optique d'entrée (106A) étant configuré pour recevoir un signal de diffusion de Rayleigh (104-1) correspondant à la diffusion de Rayleigh due à une interaction entre l'écoulement de gaz (110) et un faisceau laser (122), un réseau à commande de phase virtuellement imagé (VIPA) (102) situé à l'intérieur du boîtier (106) et configuré pour générer des franges de lumière bidimensionnelles (2D) (310) à partir du signal de diffusion de Rayleigh (104-1), et des première à quatrième lentilles (L1 à L4) configurées pour focaliser les franges de lumière 2D (310). Le VIPA (102) est doté d'un corps (202) constitué d'un matériau transparent, et le corps (202) est pris en sandwich entre un miroir totalement réfléchissant (102A) et un miroir partiellement réfléchissant (102B).