A miniature temperature sensor based on upconversion luminescence for real-time GPU temperature monitoring

IF 2.6 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical Fiber Technology Pub Date : 2024-08-14 DOI:10.1016/j.yofte.2024.103944

Zhongli Xue , Mingyue Xie , Xiaoyuan Li , Dianchang Song , Tonglei Cheng , Fang Wang

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引用次数: 0

Abstract

This paper introduces a miniaturized optical fiber temperature sensor based on Fluorescence Intensity Ratio (FIR) technology for real-time monitoring of graphics processing unit (GPU) temperature. Utilizing a femtosecond micromachining system, miniature rectangular holes are etched on a standard multimode fiber. These holes are then filled with a mixture of Er³⁺/Yb³⁺ co-doped TeO₂-Na₂CO₃-ZnO powder and polydimethylsiloxane (PDMS) through capillary action, forming a sandwich structure. When illuminated by a 980 nm light source, upconversion (UC) fluorescence is generated, and a mathematical model correlating the fluorescence intensity ratio of two adjacent energy levels with temperature is established. The fundamental temperature sensing characteristics of the sensor are tested in a temperature-controlled chamber, with a maximum error of ± 1 K. The sensor is also applied to a GPU with real-time temperature variations, demonstrating a maximum error of 0.9 K and a response time of 1.96 s. The sensor not only possesses the advantages of a simple structure, micro size, and convenient fabrication but also exhibits immunity to electromagnetic interference, rapid response, good stability, and excellent repeatability in real-time monitoring of GPU temperature, showing potential for large-scale application.

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基于上转换发光技术的微型温度传感器，用于实时监测 GPU 温度

本文介绍了一种基于荧光强度比（FIR）技术的微型光纤温度传感器，用于实时监测图形处理器（GPU）的温度。利用飞秒微加工系统，在标准多模光纤上蚀刻出微型矩形孔。然后通过毛细管作用，将 Er3+/Yb3+ 共掺杂 TeO2-Na2CO3-ZnO 粉末和聚二甲基硅氧烷 (PDMS) 的混合物填充到这些孔中，形成夹层结构。在 980 纳米光源的照射下，会产生上转换（UC）荧光，并建立了相邻两个能级的荧光强度比与温度相关的数学模型。该传感器不仅具有结构简单、体积微小、制作方便等优点，而且在实时监测 GPU 温度方面具有抗电磁干扰、响应迅速、稳定性好、重复性好等特点，具有大规模应用的潜力。

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来源期刊

Optical Fiber Technology 工程技术-电信学

CiteScore

4.80

自引率

11.10%

发文量

327

审稿时长

63 days

期刊介绍： Innovations in optical fiber technology are revolutionizing world communications. Newly developed fiber amplifiers allow for direct transmission of high-speed signals over transcontinental distances without the need for electronic regeneration. Optical fibers find new applications in data processing. The impact of fiber materials, devices, and systems on communications in the coming decades will create an abundance of primary literature and the need for up-to-date reviews. Optical Fiber Technology: Materials, Devices, and Systems is a new cutting-edge journal designed to fill a need in this rapidly evolving field for speedy publication of regular length papers. Both theoretical and experimental papers on fiber materials, devices, and system performance evaluation and measurements are eligible, with emphasis on practical applications.