Preparation of high thermal conductivity adhesive for high precision optical fiber coil and its influence on coil temperature error

Xiaole Wu; Chao Song; Wei Luo; Yinggui Shi; Bohan Liu; Miao Yan; Xiaoming Zhang

doi:10.1117/12.2651970

23 January 2023 Preparation of high thermal conductivity adhesive for high precision optical fiber coil and its influence on coil temperature error

Xiaole Wu, Chao Song, Wei Luo, Yinggui Shi, Bohan Liu, Miao Yan, Xiaoming Zhang

Author Affiliations +

Proceedings Volume 12557, AOPC 2022: Optical Sensing, Imaging, and Display Technology; 1255725 (2023) https://doi.org/10.1117/12.2651970
Event: Applied Optics and Photonics China 2022 (AOPC2022), 2022, Beijing, China

Abstract

The development of high precision fiber optic gyroscope (HFOG) is of great strategic significance to a country's industrial and national defense science and technology. Optical fiber coil is the key to guarantee the accuracy and long-term stability of HFOG, and the adhesive is an important factor for the stability of optical fiber coil performance. In order to improve the temperature characteristics of HFOG, this study carried out the research on the technology of high thermal conductivity adhesive doped with high thermal conductive filler to improve its thermal conductivity (κ), and prepared a high thermal conductivity coil potting adhesive with excellent heat transfer and heat dissipation performance. By designing the composition ratio and block molecular structure with alternating soft and hard segments, the balance of glass transition temperature (Tg) and Yong’s modulus (Eˊ) was obtained, which can make the temperature field distribution of the optical fiber coil more uniformly, reduce the stress in the coil after curing, reduce the coil temperature errors. The above studies suppress the temperature drift and improve the overall accuracy of HFOG.

Citation Download Citation

Xiaole Wu, Chao Song, Wei Luo, Yinggui Shi, Bohan Liu, Miao Yan, and Xiaoming Zhang "Preparation of high thermal conductivity adhesive for high precision optical fiber coil and its influence on coil temperature error", Proc. SPIE 12557, AOPC 2022: Optical Sensing, Imaging, and Display Technology, 1255725 (23 January 2023); https://doi.org/10.1117/12.2651970

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KEYWORDS

Adhesives

Optical fibers

Epoxies

Fiber optic gyroscopes

Ultraviolet radiation

Precision optics

Thermography

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