| Presentation | 2020-01-17 Availability verification of circumferential strain measurement method of a general ring-shaped structure by simulation experiments Shota Kitamura, Shusuke Narieda, Hiroshi Naruse, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A method was proposed for measuring the circumferential strain produced in general ring-shaped structures by fitting the model to the Brillouin gain spectrum (BGS) observed distributedly in an optical fiber installed at the circumference of the ring-shaped structures, and the availability of the method was confirmed through numerical simulations. In this report, experiments are described, in which the strains produced in elliptical and square-shaped rings under concentrated and uniformly distributed loads, were measured from the BGS observed simulatively. In this simulation experiments, instead of the BGS under the spatial strain produced in these ring structures, the BGS under the temporal strain producing the BGS shape same as that by the spatial strain was observed at each strain measurement points. The experimental results showed that the circumferential strain can be measured with the relative error of approximately 1% to the range of the strain produced at the circumferences without depending on cross-sectional shapes of general ring-shaped structures and distributions of the load applied to them. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Optical fiber sensor / Brillouin gain spectrum / model fitting / general ring-shaped structure / circumferential strain / simulation experiment |
| Paper # | OFT2019-53 |
| Date of Issue | 2020-01-09 (OFT) |
| Conference Information | |
| Committee | OFT |
|---|---|
| Conference Date | 2020/1/16(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | NINS Okazaki Conference Center |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Fumihiko Ito(Shimane Univ.) |
| Vice Chair | |
| Secretary | (Sumitomo Electric) |
| Assistant | Hajime Arao(Sumitomo Electric) / Hiroshi Watanabe(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Optical Fiber Technology |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Availability verification of circumferential strain measurement method of a general ring-shaped structure by simulation experiments |
| Sub Title (in English) | |
| Keyword(1) | Optical fiber sensor |
| Keyword(2) | Brillouin gain spectrum |
| Keyword(3) | model fitting |
| Keyword(4) | general ring-shaped structure |
| Keyword(5) | circumferential strain |
| Keyword(6) | simulation experiment |
| 1st Author's Name | Shota Kitamura |
| 1st Author's Affiliation | Mie University(Mie Univ.) |
| 2nd Author's Name | Shusuke Narieda |
| 2nd Author's Affiliation | Mie University(Mie Univ.) |
| 3rd Author's Name | Hiroshi Naruse |
| 3rd Author's Affiliation | Mie University(Mie Univ.) |
| Date | 2020-01-17 |
| Paper # | OFT2019-53 |
| Volume (vol) | vol.119 |
| Number (no) | OFT-368 |
| Page | pp.pp.35-38(OFT), |
| #Pages | 4 |
| Date of Issue | 2020-01-09 (OFT) |