| Paper Abstract and Keywords |
| Presentation |
2024-11-07 16:00
[Invited Talk]
Assessing water position in porous media through distributed temperature sensing using Phase-noise-compensated optical frequency domain reflectometry
Tetsuya Kogure (Kyoto Univ.), Ashis Acharya, Daiki Tanimura, Chao Zhang, Fumihiko Ito (Shimane Univ.), Toshihiro Sakaki (ESE), Mitsuru Komatsu (Okayama Univ.), Issei Doi (Kyoto Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
Assessing groundwater migration or groundwater position is critical in elucidating the slope-formation process or in preventing slope disaster. This study investigated the effectiveness of Phase-noise-compensated (PNC) optical frequency domain reflectometry in detecting temperature change inside a mortar specimen with a diameter of 77 mm and length of 2,000 mm caused by the heating of a copper wire inside the specimen. After heating the wire, the temperature increase was lower at higher water-content zones where the specimen surface was partly covered with water to mimic groundwater or higher moisture zone in the ground. The result shows that lower temperature increases may also be detected where groundwater flows or stays around a borehole compared to no groundwater zones. Therefore, the PNC-OFDR appears to be a promising way to detect groundwater. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
PNC-OFDR / Temperature Measurement / Porous Media / Water / / / / |
| Reference Info. |
ITE Tech. Rep. |
| Paper # |
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| Date of Issue |
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| ISSN |
Online edition: ISSN 2424-1970 |
| Download PDF |
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| Conference Information |
| Committee |
IEICE-OFT IEICE-OCS IEE-CMN BCT IEICE-CQ |
| Conference Date |
2024-11-07 - 2024-11-08 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
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| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
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| Paper Information |
| Registration To |
IEICE-OFT |
| Conference Code |
2024-11-OFT-OCS-CMN-BCT-CQ |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Assessing water position in porous media through distributed temperature sensing using Phase-noise-compensated optical frequency domain reflectometry |
| Sub Title (in English) |
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| Keyword(1) |
PNC-OFDR |
| Keyword(2) |
Temperature Measurement |
| Keyword(3) |
Porous Media |
| Keyword(4) |
Water |
| Keyword(5) |
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| Keyword(6) |
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| Keyword(8) |
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| 1st Author's Name |
Tetsuya Kogure |
| 1st Author's Affiliation |
Kyoto University (Kyoto Univ.) |
| 2nd Author's Name |
Ashis Acharya |
| 2nd Author's Affiliation |
Shimane University (Shimane Univ.) |
| 3rd Author's Name |
Daiki Tanimura |
| 3rd Author's Affiliation |
Shimane University (Shimane Univ.) |
| 4th Author's Name |
Chao Zhang |
| 4th Author's Affiliation |
Shimane University (Shimane Univ.) |
| 5th Author's Name |
Fumihiko Ito |
| 5th Author's Affiliation |
Shimane University (Shimane Univ.) |
| 6th Author's Name |
Toshihiro Sakaki |
| 6th Author's Affiliation |
ESE Consulting, LLC (ESE) |
| 7th Author's Name |
Mitsuru Komatsu |
| 7th Author's Affiliation |
Okayama University (Okayama Univ.) |
| 8th Author's Name |
Issei Doi |
| 8th Author's Affiliation |
Kyoto University (Kyoto Univ.) |
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| Speaker |
Author-1 |
| Date Time |
2024-11-07 16:00:00 |
| Presentation Time |
40 minutes |
| Registration for |
IEICE-OFT |
| Paper # |
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| Volume (vol) |
vol.48 |
| Number (no) |
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| Page |
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