材料科学
小型化
光子上转换
光学
电磁线圈
兴奋剂
光电子学
荧光
分析化学(期刊)
纳米技术
物理
化学
色谱法
量子力学
作者
Wei Liu,Dianchang Song,Zhiyuan Yin,FAN ZHANG,Bin Li,FANG Wang,Xuenan Zhang,Xin Yan,Takenobu Suzuki,Yasutake Ohishi,Tonglei Cheng
出处
期刊:Optics Letters
[The Optical Society]
日期:2022-10-06
卷期号:47 (20): 5297-5297
被引量:6
摘要
We demonstrate a plug-in tip sensor with a maximum cross section diameter of only 1 mm for real-time thermal monitoring of a high-density miniature winding coil, which can meet the miniaturization development needs of electromagnetic actuators. Due to the high upconversion luminescence efficiency, tellurite glass with an optimized Er3+/Yb3+ doping ratio is adhered to the end face of silica fiber for a temperature-sensitive tip. Temperature information is demodulated using the fluorescence intensity ratio technique, yielding a nonlinear response with R2 up to 0.9978. Within a wide temperature range of 253.55-442.45 K, the tip sensor exhibits good repeatability, excellent stability, high sensitivity of 52.7 × 10-4 K-1, small absolute error within ±1 K, and fast time response of 2.03 s. It has been successfully proven to be a miniaturized device with strong anti-interference ability for the health management of high-density winding coils.
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