A Fiber Optic Sensor for Real Time Monitoring of the Curing/cured State of Adhesives

Author

Zhang Weiwei ; Chen Xiaping ; Gao Yiqing ; He Xingdao

Author_Institution

Key Lab. of Nondestructive Testing, Nanchang Hangkong Univ., Nanchang, China

fYear

2012

fDate

8-10 Dec. 2012

Firstpage

1278

Lastpage

1280

Abstract

Adhesives are widely used in the assembly of optoelectronic and/or electronic components. Based on the principle of Fresnel reflection, a fiber optic refract meter was set up to monitor the state of adhesives. The determined refractive indices of various liquids were consistent with their reference technical data. When taking a real time monitoring of adhesive refractivity on the refract meter, curing process of the adhesive and thermal expansion of the cured adhesive could be distinguished. Finally, the temperature dependence of the adhesive refractivity was verified with thermo-mechanical analysis through the Lorenz-Lorentz relation. Experimental results show that the setup can be a candidate replacement of thermal analysis apparatus.

Keywords

Lorenz number; adhesives; assembling; curing; fibre optic sensors; light reflection; monitoring; optoelectronic devices; refractive index; refractometers; thermal expansion; thermomechanical treatment; Fresnel reflection principle; Lorenz-Lorentz relation; adhesive refractivity; curing-cured adhesive state; fiber optic refractometer; fiber optic sensor; optoelectronic component; real time monitoring; reference technical data; temperature dependence; thermal analysis apparatus; thermal expansion; thermomechanical analysis; Curing; Liquids; Optical fiber sensors; Optical fibers; Probes; Real-time systems; Refractive index; adhesive; fiber optic; refractive indices;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation, Measurement, Computer, Communication and Control (IMCCC), 2012 Second International Conference on

Conference_Location

Harbin

Print_ISBN

978-1-4673-5034-1

Type

conf

DOI

10.1109/IMCCC.2012.300

Filename

6429136