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高灵敏的高温光学温度计是通过利用相反的热依赖的双排放设计实现的

Lixin Peng¹, Junshan Hu¹, Jia Fu¹

¹School of science, Key Laboratory of High Performance Scientific Computation, Xihua University, Chengdu 610039, China.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy

|December 12, 2025

概括

一种新的双排放光学温度计方法使用YVO4:Eu3+和CaMoO4:Er3+复合材料进行准确的非接触温度测量. 这种方法提高了高温的灵敏度,克服了传统光强度比技术的局限性.

科学领域:

材料科学材料科学材料科学
光学工程是指光学工程.
热力学是一种热力学.

背景情况:

无接触光学温度计对于恶劣的空气动力学和推进环境至关重要.
传统的光强度比 (FIR) 温度计在高温下由于灵敏度下降而扎.

研究的目的:

开发一种新的双排放光学温度计技术,以改进高温测量.
为了克服FIR温度计与温度依赖的人口分布相关的局限性.

主要方法:

使用了YVO4:Eu3+和CaMoO4:Er3+的复合系统.
使用常见的380nm激发源.
开发了一种双排放方法,总结相反的单色敏感性.

主要成果:

Eu3+和Er3+的排放显示出相反的,单调的温度依赖.
在高温范围内实现了提高整体灵敏度.
在633K时记录了1.85%·K-1的最大相对灵敏度 (Sr).
保持温度不确定性 (ΔT) 在1K以下,即使在743K.

结论:

开发的双排放温度计克服了传统方法的 ΔE/kBT2 限制.
为非接触表面温度诊断提供可靠的高性能解决方案.
在模拟风洞条件下证明有效.

关键词:

复合系统是一个复合系统.光强度比 (FIR) 是指光的强度比.高温传感器可以传感高温.光学测温仪是一种光学温度计.稀土是一种稀土.

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