Fibre Bragg grating sensors for in-situ measurement of resin pressure in curing composites

A. S. Ganapathi; Muneesh Maheshwari; Sunil C. Joshi; Zhong Chen; Anand Asundi; Swee Chuan Tjin

doi:10.1117/12.2084783

4 March 2015 Fibre Bragg grating sensors for in-situ measurement of resin pressure in curing composites

A. S. Ganapathi, Muneesh Maheshwari, Sunil C. Joshi, Zhong Chen, Anand Asundi, Swee Chuan Tjin

Proceedings Volume 9302, International Conference on Experimental Mechanics 2014; 93021T (2015) https://doi.org/10.1117/12.2084783
Event: International Conference on Experimental Mechanics 2014, 2014, Singapore, Singapore

Abstract

A fibre optic sensor was developed for in-situ pressure measurement based on the principle of differential pressure in liquids. This sensor system is very simple and consists of fibre Bragg grating (FBG) done on a fibre with core diameter of 9 μm. A calibration study was carried out with a water column and the pressure sensitivity was found to be 1.636 × 10^-2MPa^-1. The results show that response of FBG to the rise of water level is linear and agrees well with the theoretical results. The reliability of the sensors is confirmed by repeating the measurements for three times. The sensor is useful in applications that involve in-situ resin pressure measurement in manufacturing of laminated composite materials.

Citation Download Citation

A. S. Ganapathi, Muneesh Maheshwari, Sunil C. Joshi, Zhong Chen, Anand Asundi, and Swee Chuan Tjin "Fibre Bragg grating sensors for in-situ measurement of resin pressure in curing composites", Proc. SPIE 9302, International Conference on Experimental Mechanics 2014, 93021T (4 March 2015); https://doi.org/10.1117/12.2084783

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available