Dual-parameter sensing characteristics of a single fiber Bragg grating half-pasted by 1C-LV epoxy under different curing

• Autorzy: Li Hong , Zhang Haoyue , Song Yanming , Meng Fanyong , Zhu Lianqing

Identyfikatory

DOI

10.37190/oa210307

• Języki publikacji: EN

Abstrakty

EN

A novel technology for the simultaneous and independent measurement of dual parameters is proposed and experimented. By using a single fiber Bragg grating half-pasted by 1C-LV epoxy under different curing conditions, the sensor structure is designed such that the reflective single-peak spectrum splits into a twin-peak spectrum, which makes the FBG spectrum form a natural spectral peak splitting bias. A measurement limitation exists in the FBG sensor packaging at room temperature, which can be solved by the high-temperature cured packaging method. To verify the validity of the theory and methodology, the experimental system is used. In the range from –1000 to +1000 με and from 35 to 75°C, the Bragg wavelength change is relative linear to the strain and temperature. The temperature and strain variations can be independently and simultaneously measured using the split peak, and the deviations of the FBG sensor are ±1°C and ±5 με, respectively. This single FBG sensor can realize dual-parameter measurement, which is valuable for narrow-space health monitoring.

Słowa kluczowe

EN

fiber Bragg grating; cross-sensitivity; double peaks; surface pasting; curing

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2021
• Tom: Vol. 51, nr 3
• Strony: 391--406
• Opis fizyczny: Bibliogr. 24 poz., rys.

Twórcy

autor

Li Hong

• Key Laboratory of the Ministry of Education for Optoelectronic Measurement Technology and Instrument, Beijing Information Science & Technology University, Beijing, 100016, People’s Republic of China
• Beijing Laboratory of Optical Fiber Sensing and System, Beijing Information Science & Technology University, Beijing, 100016, People’s Republic of China

autor

Zhang Haoyue

• Key Laboratory of the Ministry of Education for Optoelectronic Measurement Technology and Instrument, Beijing Information Science & Technology University, Beijing, 100016, People’s Republic of China

autor

Song Yanming

• Beijing Laboratory of Optical Fiber Sensing and System, Beijing Information Science & Technology University, Beijing, 100016, People’s Republic of China

autor

Meng Fanyong

• Key Laboratory of the Ministry of Education for Optoelectronic Measurement Technology and Instrument, Beijing Information Science & Technology University, Beijing, 100016, People’s Republic of China

autor

Zhu Lianqing

• Key Laboratory of the Ministry of Education for Optoelectronic Measurement Technology and Instrument, Beijing Information Science & Technology University, Beijing, 100016, People’s Republic of China
• Overseas Expertise Introduction Center for Discipline Innovation (“111 Center”), Beijing Information Science & Technology University, Beijing, 100192, People’s Republic of China

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