Health monitoring of composite materials using dual sensing fiber Bragg grating systems

使用双传感光纤布拉格光栅系统对复合材料进行健康监测

• 批准号: 16560603
• 负责人: TSUDA Hiroshi
• 金额: $ 2.24万
• 依托单位: National Institute of Advanced Industrial Science and Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16560603/
• 关键词: FBG; nondestructive testing; composites; ultrasonics; strain; impact damage; 光ファイバセンサ; 健全性評価; 動的ひずみ

Smart structures in which structural conditions are monitored with built-in sensors have drawn attention in these days. In smart structures including detection of both impact loading and damage using conventional technique, strain gauges and piezoelectric sensors would be installed. However, these electric sensors have serious drawbacks that they suffer from electromagnetic interference and cannot be used in explosive environment. Moreover, they need individual cables. Therefore, the monitoring system applied to large-scale structures where multi-point sensing is performed would inevitably include complex cable network. In order to overcome these technical difficulties, fiber Bragg gratings (FBGs) featuring multifunction, multiplexibility as well as immunity to electromagnetic interference have been expected to be promising sensors for structural health monitoring.The objective of the present study is to develop a simple FBG sensing system which can measure strain and detect ultrasound … More for structural health monitoring. A fiber-optic system featuring strain measurement and ultrasonic detection was constructed with fiber Bragg gratings based on wavelength-light intensity conversion technique. This fiber Bragg grating sensing system consists of a broadband light source, a broadband optical filter for strain measurement and a narrowband tunable filter for ultrasonic detection. The system was applied to strain measurement in impact loading to carbon fiber-reinforced plastics and the subsequent impact damage detection.Experimental results proved that the minimum detectable strain for FBG and conventional strain gauge are estimated to be 1.2με and 8.1.με, and signal-to-noise ratios are evaluated to be 40dB and 8dB, respectively. FBG sensors would be highly reliable in long-term strain measurement because of its self-referencing and immunity to electromagnetic interference. Furthermore, ultrasonic inspection in which ultrasonic sensitivity was maximized using the tunable filter could detect a 6.3X9mm^2 impact damage. These experimental results have confirmed that the FBG sensing system can be useful tools to monitor strain and damage in composite materials. Less

智能结构，其中结构状况监测与内置传感器引起了人们的注意，在这些天。在包括使用传统技术检测冲击载荷和损伤的智能结构中，将安装应变片和压电传感器。然而，这些电传感器具有严重的缺点，它们遭受电磁干扰，并且不能在爆炸环境中使用。此外，它们还需要单独的电缆。因此，应用于进行多点传感的大型结构的监测系统将不可避免地包括复杂的电缆网络。为了克服这些技术难题，光纤布拉格光栅（FBG）具有多功能、多灵活性和抗电磁干扰等特点，有望成为结构健康监测的传感器 ...更多信息 用于结构健康监测。基于波长-光强转换技术，利用光纤光栅构成了一种应变和超声检测的光纤系统。该光纤光栅传感系统由宽带光源、用于应变测量的宽带滤光片和用于超声检测的窄带可调谐滤光片组成。将该系统应用于碳纤维复合材料的冲击应变测量和冲击损伤检测，实验结果表明，光纤光栅和普通应变计的最小可测应变分别为1.2με和8.1 με，信噪比分别为40 dB和8dB。光纤光栅传感器具有自参考和抗电磁干扰的特性，在长期应变测量中具有很高的可靠性。此外，使用可调谐滤波器使超声波灵敏度最大化的超声波检查可以检测到6.3X9mm^2的冲击损伤。这些实验结果证实了光纤光栅传感系统可以用于监测复合材料中的应变和损伤。少

项目成果

Impact damage monitoring in CFRP using fiber Bragg grating sensors

使用光纤布拉格光栅传感器监测 CFRP 的冲击损伤

• 发表时间: 2006
• 期刊: Proceedings of SPIE 6176-6
• 作者: 會田哲夫;高辻則夫;松木賢司;小原卓;鎌土重晴;鈴木 達;T.S.Suzuki;佐藤 寿;T.S.Suzuki;會田 哲夫;T.Uchikoshi;Hisashi Sato;T.Uchikoshi;Tetsuo Aida;T.S.Suzuki;津田 浩;津田 浩;打越 哲郎;津田 浩
• 通讯作者: 津田 浩

Impact damage monitoring of composite plates using fiber Bragg grating ultrasonic sensors

使用光纤布拉格光栅超声波传感器监测复合材料板的冲击损伤

• 发表时间: 2005
• 期刊: Proceedings of the 9th Japan international SAMPE symposium
• 作者: 會田哲夫;高辻則夫;松木賢司;小原卓;鎌土重晴;鈴木 達;T.S.Suzuki;佐藤 寿;T.S.Suzuki;會田 哲夫;T.Uchikoshi;Hisashi Sato;T.Uchikoshi;Tetsuo Aida;T.S.Suzuki;津田 浩;津田 浩;打越 哲郎;津田 浩;Tohru S. Suzuki;Hiroshi Tsuda;Tohru S. Suzuki;Hiroshi Tsuda;T.S.Suzuki;津田 浩;T.S.Suzuki;津田 浩;T.Uchikoshi;津田 浩
• 通讯作者: 津田 浩

Ultrasonic measurement with FBG sensors

使用 FBG 传感器进行超声波测量

• 发表时间: 2004
• 期刊: Ultrasonic Technology 16
• 作者: Tohru S.;Suzuki;Hiroshi Tsuda;鈴木 達;Jung-Ryul Lee;鈴木 達;Yoshio Akimune;鈴木 達;李 政律;鈴木 達;津田 浩;打越 哲郎;津田 浩;Tohru S. Suzuki;津田 浩;T.S.Suzuki;Tohru S. Suzuki;津田 浩;Tohru S. Suzuki;李 政律;Tohru S. Suzuki;Hiroshi Tsuda;T.Uchikoshi;Hiroshi Tsuda;T.Suzuki;Hiroshi Tsuda;鈴木 達;Hiroshi Tsuda
• 通讯作者: Hiroshi Tsuda

A novel, fiber Bragg grating acoustic emission sensor head for mechanical tests

• DOI: 10.1016/j.scriptamat.2005.07.018
• 发表时间: 2005-11-01
• 期刊: SCRIPTA MATERIALIA
• 影响因子: 6
• 作者: Lee, JR;Tsuda, H
• 通讯作者: Tsuda, H

FBGセンサのLamb波伝播に対する応答とアクティブセンシングへの応用

FBG 传感器对兰姆波传播的响应及其在主动传感中的应用

• 发表时间: 2004
• 期刊: 非破壊検査 53・7
• 作者: Tohru S.;Suzuki;Hiroshi Tsuda;鈴木 達;Jung-Ryul Lee;鈴木 達;Yoshio Akimune;鈴木 達;李 政律;鈴木 達;津田 浩;打越 哲郎;津田 浩;Tohru S. Suzuki;津田 浩
• 通讯作者: 津田 浩