𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A simple smart composite using fiber Bragg grating sensors for strain and temperature discrimination

✍ Scribed by O. Frazão; R. Oliveira; I. Dias

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
588 KB
Volume
51
Category
Article
ISSN
0895-2477

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

A smart laminated composite with a simple geometry was produced with embedded fiber Bragg grating sensors. The smart structure is composed of two Bragg gratings located in regions of different thicknesses of the laminated composite. Although one of the Bragg gratings is embedded between two layers, the other is embedded in four layers. When the strain is applied to the smart composite, different response is obtained. Because of this characteristic it is possible to discriminate strain and temperature using a traditional matrix method. To reduce the inherent error, an artificial neural network approach is proposed that will improve the strain and temperature measurement discrimination when using this new configuration. These instrumented carbon fiber laminates can be used for monitoring of reinforcement and protection of structures. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 235–239, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23990

📜 SIMILAR VOLUMES

A simple temperature-independent strain
A simple temperature-independent strain sensor using a fiber BRAGG grating
✍ Zhiyong Zhao; Shuang Zhang; Yongsen Yu; Zhongchang Zhuo; Ying Qian; Yinghui Cao; 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 76 KB

## Abstract A novel temperature‐independent strain sensor based on a fiber Bragg grating is demonstrated. The front section of the fiber Bragg grating is fixed to a crystal plate, and the other section is linearly etched in HF acid. The reflected power of the grating varies linearly with strain and

Discrimination between strain and temper
Discrimination between strain and temperature with a single fiber Bragg grating
✍ Bai-Ou Guan; Hwa-Yaw Tam; Helen L. W. Chan; Chung-Loong Choy; Muhtesem Süleyman 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 101 KB

## Abstract A new scheme is proposed for simultaneous strain and temperature measurement with a single‐fiber Bragg grating. The grating sensor was written on the splice joint between two fibers and has two resonance peaks because of the different refractive index between the two fibers. By bonding

Design and experimental evaluation of a
Design and experimental evaluation of a composite strain rosette using fiber Bragg grating
✍ C. A. Ramos; R. de Oliveira; A.T. Marques; O. Frazão 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 634 KB

## Abstract The purpose of this study is to design a composite strain rosette using embedded fiber Bragg grating (FBG) sensors. Those strain rosettes are meant to be used as alternative to the conventional electric rosettes in structural health monitoring applications being glued at the structure s

Simultaneous measurement of axial strain
Simultaneous measurement of axial strain and temperature using a PM fiber Bragg grating
✍ Zhongrong Tong; Jinting Zhao; Xiufeng Yang 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 376 KB

## Abstract A novel design for simultaneous axial strain and temperature measurement using a PM fiber Bragg grating (PMFBG) concatenated with a Sagnac fiber loop mirror is proposed and demonstrated.The PMFBG acts as a sensor head, and the Sagnac fiber loop mirror serves as a filter to convert wavel

Embedded dual fiber Bragg grating sensor
Embedded dual fiber Bragg grating sensor for simultaneous measurement of temperature and load (strain) with enhanced sensitivity
✍ Samir K. Mondal; Vandana Mishra; Umesh Tiwari; G. C. Poddar; Nahar Singh; Subhas 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 168 KB

## Abstract An embedded dual fiber Bragg gratings sensor for simultaneous measurement of temperature and load (strain) is proposed and experimentally demonstrated. Two nearly identical gratings are mounted on opposite side of an arch‐shaped steel strip. The grating in concave and convex position ex