Simultaneous Measurement of Strain and Temperature Distributions Using Optical Fibers with Different GeO2 and B2O3 Doping

Authors: Shinsaku Hisada, Utanori Kodakamine, Daichi Wada, Hideaki Murayama, Hirotaka Igawa

Source: Sensors, Vol 23, Iss 3, p 1156 (2023)

Subject Terms: optical fiber, fiber Bragg grating, distributed measurement, strain and temperature, error propagation, Chemical technology, TP1-1185

File Description: electronic resource

Relation: https://www.mdpi.com/1424-8220/23/3/1156; https://doaj.org/toc/1424-8220

Access URL: https://doaj.org/article/e6eca05ae31742e5b0c8f93f9c6e5d7a

On-orbit experiment plan of robust attitude control of ETS-VIII

Authors: Takashi Ohtani, Yoshiro Hamada, Tomoyuki Nagashio, Takashi Kida, Shinji Mitani, Isao Yamaguchi, Tokio Kasai, Hirotaka Igawa

Source: SICE Annual Conference 2007 SICE, 2007 Annual Conference. :2264-2267 Sep, 2007

Relation: SICE Annual Conference 2007

Structural Health Monitoring Based on Strain Distributions Measured by Fiber-optic Sensors.

Authors: Hideaki Murayama¹, Daichi Wada¹, Hirotaka Igawa²

Source: PIERS Proceedings; Aug2014, p1286-1289, 4p

Investigation of Inverse Analysis and Neural Network Approaches for Identifying Distributed Load using Distributed Strains.

Authors: Daichi WADA, Yohei SUGIMOTO, Hideaki MURAYAMA, Hirotaka IGAWA, Toshiya NAKAMURA

Source: Transactions of the Japan Society of Aeronautical & Space Science; 2019, Vol. 62 Issue 3, p151-161, 11p

Subject Terms: ARTIFICIAL neural networks, MATRIX inversion, MEASUREMENT errors, STRUCTURAL health monitoring, COMPUTER simulation

Vibration monitoring of a helicopter blade model using the optical fiber distributed strain sensing technique.

Authors: Daichi Wada¹, wada.daichi@jaxa.jp, Hirotaka Igawa¹, Tokio Kasai¹

Source: Applied Optics (1559-128X); Sep2016, Vol. 55 Issue 25, p6953-6959, 7p

Inverse Thermoelastic Analysis for Thermal and Mechanical Loads Identification using FBG Data.

Authors: Toshiya Nakamura, Yukihiro Kamimura, Hirotaka Igawa, Yoshiki Morino

Source: AIP Conference Proceedings; 2014, Vol. 1637, p707-713, 7p, 2 Diagrams, 4 Charts, 2 Graphs

Subject Terms: FIBER Bragg gratings, THERMOELASTICITY, MECHANICAL loads, DATA analysis, STRUCTURAL health monitoring, BOUNDARY value problems

Distributed strain measurement based on long-gauge FBG and delayed transmission/reflection ratiometric reflectometry for dynamic structural deformation monitoring.

Authors: Michiko Nishiyama¹, mnishiya@soka.ac.jp, Hirotaka Igawa², Tokio Kasai², Naoyuki Watanabe³

Source: Applied Optics (1559-128X); 2/10/2015, Vol. 54 Issue 5, p1191-1197, 7p

Flight demonstration of aircraft wing monitoring using optical fiber distributed sensing system.

Authors: Daichi Wada, Hirotaka Igawa, Masato Tamayama, Tokio Kasai, Hitoshi Arizono, Hideaki Murayama

Source: Smart Materials & Structures; May2019, Vol. 28 Issue 5, p1-1, 1p

Flight demonstration of aircraft fuselage and bulkhead monitoring using optical fiber distributed sensing system.

Authors: Daichi Wada, Hirotaka Igawa, Masato Tamayama, Tokio Kasai, Hitoshi Arizono, Hideaki Murayama, Katsuya Shiotsubo

Source: Smart Materials & Structures; Feb2018, Vol. 27 Issue 2, p1-1, 1p

Dynamic strain distribution measurement and crack detection of an adhesive-bonded single-lap joint under cyclic loading using embedded FBG.

Authors: Xiaoguang Ning, Hideaki Murayama, Kazuro Kageyama, Daichi Wada, Makoto Kanai, Isamu Ohsawa, Hirotaka Igawa

Source: Smart Materials & Structures; Oct2014, Vol. 23 Issue 10, p1-1, 1p