Design of improved differential decoupling method of temperature sensitivity and piezoresistivity for CFRPs

Jing Li

doi:10.1117/12.2687305

6 August 2023 Design of improved differential decoupling method of temperature sensitivity and piezoresistivity for CFRPs

Jing Li

Author Affiliations +

Proceedings Volume 12781, International Conference on Optoelectronic Information and Functional Materials (OIFM 2023); 127811K (2023) https://doi.org/10.1117/12.2687305
Event: 2023 International Conference on Optoelectronic Information and Functional Materials (OIFM 2023), 2023, Guangzhou, JS, China

Abstract

Based on the deformation monitoring of engineering structures in variable temperature environment, error of differential decoupling method of Carbon fiber reinforced plastic sensors was studied. The results reveals that the individual differences of the temperature sensitivities in carbon fiber composites causes obvious error in strain measuring, which would increase with the increase of the differences of their temperature sensitivities. Improved differential decoupling method was put forward by setting the constant current power supplied with different excitation. This method is able to eliminate the error caused by differences both in the temperature sensitivities and the initial resistances and provides a high gauge factor. The effectiveness of the improved differential decoupling method was verified experimentally.

Citation Download Citation

Jing Li "Design of improved differential decoupling method of temperature sensitivity and piezoresistivity for CFRPs", Proc. SPIE 12781, International Conference on Optoelectronic Information and Functional Materials (OIFM 2023), 127811K (6 August 2023); https://doi.org/10.1117/12.2687305

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