JP6218163B1 - 光ファイバ温度センサおよびその製造方法 - Google Patents
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0275—Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/12—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance
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- G—PHYSICS
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- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
- G01K11/3206—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres at discrete locations in the fibre, e.g. using Bragg scattering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2200/00—Prediction; Simulation; Testing
- F28F2200/005—Testing heat pipes
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Abstract
Description
特許文献1に記載の従来技術では、上記のとおり、CFRP製の基材の内部にFBGセンサ部が埋め込まれるように構成されている。このように構成された場合、光ファイバ温度センサの特性上、−50℃以下の温度域(以下、極低温域と称す)では、温度変化によるブラッグ波長変化が小さくなり、その結果、センサ感度が低下するという問題がある。
まず、本実施の形態1における光ファイバ温度センサの構成要素の1つである光ファイバ1について、図5〜図8を参照しながら説明する。
λB=2nΛ (1)
先の実施の形態1では、光ファイバ温度センサの基材3の第1の基材本体31が温度評価対象5に接着される場合について説明した。これに対して、本発明の実施の形態2では、光ファイバ温度センサの基材3の第2の基材本体32が温度評価対象5に接着される場合について説明する。なお、本実施の形態2では、先の実施の形態1と同様である点の説明を省略し、先の実施の形態1と異なる点を中心に説明する。
Claims (5)
- 第1の基材本体と、前記第1の基材本体よりも熱膨張係数が大きく、前記第1の基材本体に貼り付けられている第2の基材本体とを有する基材と、
ブラッグ波長と温度の関係から温度を計測するためのFBGセンサ部を有する光ファイバと、
を備え、
前記光ファイバは、前記FBGセンサ部が前記第2の基材本体の内部に位置するように、前記第2の基材本体の内部に埋め込まれている
光ファイバ温度センサ。 - 前記第1の基材本体が温度評価の対象に接着され、
前記光ファイバは、前記基材の順反りに伴って前記FBGセンサ部に圧縮応力が付加されるように、前記第2の基材本体の内部に埋め込まれている
請求項1に記載の光ファイバ温度センサ。 - 前記第2の基材本体が温度評価の対象に接着され、
前記光ファイバは、前記基材の順反りに伴って前記FBGセンサ部に引張応力が付加されるように、前記第2の基材本体の内部に埋め込まれている
請求項1に記載の光ファイバ温度センサ。 - 前記第1の基材本体および前記第2の基材本体は、繊維強化プラスチック製である
請求項1から3のいずれか1項に記載の光ファイバ温度センサ。 - 第1の基材本体と、前記第1の基材本体よりも熱膨張係数が大きく、前記第1の基材本体に貼り付けられている第2の基材本体とを有する基材と、
ブラッグ波長と温度の関係から温度を計測するためのFBGセンサ部を有する光ファイバと、
を備えた光ファイバ温度センサを、第1の基材本体用の第1のプリプレグと、第2の基材本体用の第2のプリプレグとを用いて製造する製造方法であって、
前記第1のプリプレグを順次積層することで第1の成形材料を作製するステップと、
前記第1の成形材料の上に前記第2のプリプレグを順次積層し、積層されている前記第2のプリプレグの上に前記FBGセンサ部が位置するように前記光ファイバを配置した状態で、前記第2のプリプレグをさらに順次積層することで第2の成形材料を作製するステップと、
前記第1の成形材料および前記第2の成形材料を加圧下で加熱するステップと、
を備えた光ファイバ温度センサの製造方法。
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PCT/JP2017/006878 WO2017150339A1 (ja) | 2016-03-04 | 2017-02-23 | 光ファイバ温度センサおよびその製造方法 |
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EP (1) | EP3425357B1 (ja) |
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WO2014199532A1 (ja) * | 2013-06-10 | 2014-12-18 | 三菱電機株式会社 | ハニカムサンドイッチ構造体およびハニカムサンドイッチ構造体の製造方法 |
EP3385692A1 (en) * | 2017-04-03 | 2018-10-10 | Indigo Diabetes N.V. | Hermeticity testing of an optical assembly |
US11958255B2 (en) * | 2018-07-31 | 2024-04-16 | University Of South Carolina | In-situ fiber-optic temperature field measurement during thermoplastic composite welding and other applications |
CN110207848A (zh) * | 2019-07-01 | 2019-09-06 | 蚌埠学院 | 一种基底加上盖式光纤光栅温度增敏传感器 |
CN113607554B (zh) * | 2021-06-16 | 2023-08-04 | 中国地质调查局武汉地质调查中心 | 一种玄武岩纤维筋锚索综合锚固性能测试装置及方法 |
Citations (6)
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JPS59203930A (ja) * | 1983-05-06 | 1984-11-19 | Sumitomo Electric Ind Ltd | 測温方法 |
JP2001194249A (ja) * | 2000-01-12 | 2001-07-19 | Foundation Of River & Basin Integrated Communications Japan | 光ファイバ式温度計 |
JP2001296110A (ja) * | 2000-04-17 | 2001-10-26 | Ntt Advanced Technology Corp | 貼り付け型光ファイバセンサ |
JP2011022029A (ja) * | 2009-07-16 | 2011-02-03 | Tobishima Corp | コンクリート構造物の歪み検出装置 |
US20120033710A1 (en) * | 2009-08-26 | 2012-02-09 | Optopower Co., Ltd. | Optical temperature sensor |
JP2014190874A (ja) * | 2013-03-27 | 2014-10-06 | Railway Technical Research Institute | 光ファイバ温度センサ |
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US7221829B2 (en) * | 2003-02-24 | 2007-05-22 | Ngk Spark Plug Co., Ltd. | Substrate assembly for supporting optical component and method of producing the same |
JP5047069B2 (ja) | 2008-06-17 | 2012-10-10 | 三菱電機株式会社 | ヒートパイプ埋め込みパネル及びその製造方法 |
US8303176B2 (en) * | 2010-05-11 | 2012-11-06 | Vladimir Kochergin | Cryogenic fiber optic temperature sensor and method of manufacturing the same |
JP5675665B2 (ja) | 2012-01-31 | 2015-02-25 | 三菱電機株式会社 | 光ファイバセンサを備えたハニカムサンドイッチ構造体およびその製造方法 |
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- 2017-02-23 US US16/077,655 patent/US10408644B2/en active Active
- 2017-02-23 JP JP2017536367A patent/JP6218163B1/ja active Active
- 2017-02-23 WO PCT/JP2017/006878 patent/WO2017150339A1/ja active Application Filing
- 2017-02-23 EP EP17759805.9A patent/EP3425357B1/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS59203930A (ja) * | 1983-05-06 | 1984-11-19 | Sumitomo Electric Ind Ltd | 測温方法 |
JP2001194249A (ja) * | 2000-01-12 | 2001-07-19 | Foundation Of River & Basin Integrated Communications Japan | 光ファイバ式温度計 |
JP2001296110A (ja) * | 2000-04-17 | 2001-10-26 | Ntt Advanced Technology Corp | 貼り付け型光ファイバセンサ |
JP2011022029A (ja) * | 2009-07-16 | 2011-02-03 | Tobishima Corp | コンクリート構造物の歪み検出装置 |
US20120033710A1 (en) * | 2009-08-26 | 2012-02-09 | Optopower Co., Ltd. | Optical temperature sensor |
JP2014190874A (ja) * | 2013-03-27 | 2014-10-06 | Railway Technical Research Institute | 光ファイバ温度センサ |
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US20190049271A1 (en) | 2019-02-14 |
EP3425357A1 (en) | 2019-01-09 |
EP3425357B1 (en) | 2020-08-12 |
US10408644B2 (en) | 2019-09-10 |
WO2017150339A1 (ja) | 2017-09-08 |
JPWO2017150339A1 (ja) | 2018-03-15 |
EP3425357A4 (en) | 2019-03-06 |
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