JPWO2025017891A1 - - Google Patents
Info
- Publication number
- JPWO2025017891A1 JPWO2025017891A1 JP2025533817A JP2025533817A JPWO2025017891A1 JP WO2025017891 A1 JPWO2025017891 A1 JP WO2025017891A1 JP 2025533817 A JP2025533817 A JP 2025533817A JP 2025533817 A JP2025533817 A JP 2025533817A JP WO2025017891 A1 JPWO2025017891 A1 JP WO2025017891A1
- Authority
- JP
- Japan
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2023/026507 WO2025017891A1 (ja) | 2023-07-20 | 2023-07-20 | 光ファイバセンシング方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPWO2025017891A1 true JPWO2025017891A1 (https=) | 2025-01-23 |
Family
ID=94281327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2025533817A Pending JPWO2025017891A1 (https=) | 2023-07-20 | 2023-07-20 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPWO2025017891A1 (https=) |
| WO (1) | WO2025017891A1 (https=) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0728266B2 (ja) * | 1988-01-11 | 1995-03-29 | 日本電信電話株式会社 | 光線路試験方式 |
| JP5550214B2 (ja) * | 2008-04-17 | 2014-07-16 | アンリツ株式会社 | コヒーレントｏｔｄｒ装置 |
| WO2017111940A1 (en) * | 2015-12-22 | 2017-06-29 | Halliburton Energy Services, Inc. | System and method for optical communication using optical switches |
| EP3510363B1 (en) * | 2016-09-08 | 2023-11-01 | Fiber Sense Limited | Method for distributed acoustic sensing |
| US11159200B2 (en) * | 2018-01-26 | 2021-10-26 | Nec Corporation | High speed frequency hopping DAS interrogation using AOM-gated re-circulating loop and frequency-shifted receiver LO |
| AU2019380874B2 (en) * | 2018-11-13 | 2024-12-19 | Fiber Sense Limited | Method and system for distributed fibre optic sensing |
| US10917168B2 (en) * | 2018-12-21 | 2021-02-09 | Nec Corporation | Optical fiber sensing systems, methods, structures and applications |
| US11387898B2 (en) * | 2020-02-24 | 2022-07-12 | Nec Corporation | Distributed sensing over switched optical fiber networks |
-
2023
- 2023-07-20 JP JP2025533817A patent/JPWO2025017891A1/ja active Pending
- 2023-07-20 WO PCT/JP2023/026507 patent/WO2025017891A1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2025017891A1 (ja) | 2025-01-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20260415 |