小林 喬郎
著者に関連した記事は3件です。
更新情報
論文
FBG センサによる高温環境下原子炉配管変形計測用 歪み・温度モニタリング技術の開発
著者:
小林 喬郎,Takao KOBAYASHI,猿田 晃一,Koichi SARUTA,福元 謙一,Ken-ichi FUKUMOTO
発刊日:
公開日:
キーワードタグ:
fiber Bragg grating (FBG) sensor high speed strain measurement on-line monitoring method optical fiber strain gauge
小林 喬郎,Takao KOBAYASHI,猿田 晃一,Koichi SARUTA,福元 謙一,Ken-ichi FUKUMOTO
発刊日:
公開日:
キーワードタグ:
fiber Bragg grating (FBG) sensor high speed strain measurement on-line monitoring method optical fiber strain gauge
Abstract : A new technique of temperature and strain measurement using fiber Bragg grating (FBG) optical fiber sensor at high temperature in irradiation environment was proposed, in which interrogation of FBGs is carried out based on optical time-domain reflectometry (OTDR). Heating test results showed that stable temperature measurement can be done at 600°C and the reflectance of FBG can be kept constant up to 1000°C. From the strain measurement test on a cantilever, multi-point strain measurement c...
英字タイトル:
Development of the FBG sensor for strain and temperature monitoring of high-temperature pipelines of nuclear power reactors
英字タイトル:
Development of the FBG sensor for strain and temperature monitoring of high-temperature pipelines of nuclear power reactors
第6回
耐熱FBG を用いた高速炉プラント健全性監視システムの開発：耐熱FBG のひずみ計測性能評価
著者:
猿田 晃一,Koichi SARUTA,月森 和之,Kazuyuki TSUKIMORI,島田 幸洋,Yukihiro SHIMADA,西村 昭彦,Akihiko NISHIMURA,小林 喬郎,Takao KOBAYASHI
発刊日:
公開日:
キーワードタグ:
fast reactor fiber Bragg grating health monitoring high temperature nuclear power plant strain structural integrity
猿田 晃一,Koichi SARUTA,月森 和之,Kazuyuki TSUKIMORI,島田 幸洋,Yukihiro SHIMADA,西村 昭彦,Akihiko NISHIMURA,小林 喬郎,Takao KOBAYASHI
発刊日:
公開日:
キーワードタグ:
fast reactor fiber Bragg grating health monitoring high temperature nuclear power plant strain structural integrity
A thermal-resistant fiber Bragg grating (FBG) fabricated by femtosecond laser processing was examined to evaluate the performance as a strain sensor, compared with a conventional FBG se nsor. Each FBG was affixed on a stainless-steel beam along with a strain gauge to measure the Bragg wavelength shift as a function of strain. We used the intensity of the reflection spe ctra from the FBGs as a weighting factor to determine the Bragg wavelengths. Although the strain sensitivity for the thermal-resistant FBG ...
英字タイトル:
Development of a health monitoring system using a thermal-resistant fiber Bragg grating for fast reactor power plants: performance evaluation of a thermal-resistant FBG for strain measurement
英字タイトル:
Development of a health monitoring system using a thermal-resistant fiber Bragg grating for fast reactor power plants: performance evaluation of a thermal-resistant FBG for strain measurement
第6回
超短パルスレーザーによるFBG センサの製作と性能評価
著者:
島田 幸洋,Yukihiro SHIMADA,西村 昭彦,Akihiko NISHIMURA,猿田 晃一,Koichi SARUTA,月森 和之,Kazuyuki TSUKIMORI,小林 喬郎,Takao KOBAYASHI
発刊日:
公開日:
キーワードタグ:
Fiber Bragg Grating High Temperature Pulse Laser Processing Seismic Safety
島田 幸洋,Yukihiro SHIMADA,西村 昭彦,Akihiko NISHIMURA,猿田 晃一,Koichi SARUTA,月森 和之,Kazuyuki TSUKIMORI,小林 喬郎,Takao KOBAYASHI
発刊日:
公開日:
キーワードタグ:
Fiber Bragg Grating High Temperature Pulse Laser Processing Seismic Safety
Fiber Bragg Grating (FBG) is the periodic refractive-index structure in an optical fiber core, where the light of a specific wavelength is reflected. It can be used as te mperature or a distorted sensor by measuring change of the reflective wavelength of FBG. We processed FBG using a Chirped Pulse Amplification titanium sapphire laser. As a result, the peak intensity of reflective spectrum has been successfully improved from -40 dB to -24 dB. Heating test under operational temperature of Fast Breeder React...
英字タイトル:
Fabrication and performance assessment of FBG sensor with pulse laser processing
英字タイトル:
Fabrication and performance assessment of FBG sensor with pulse laser processing