Fiber‐optic high‐temperature sensor based on the fluorescence lifetime of alexandrite
Fiber‐optic high‐temperature sensor based on the fluorescence lifetime of alexandrite
复制标题
基于翠绿宝石荧光寿命的光纤高温传感器
DOI：
10.1063/1.1143285
复制
发表时间：
1992
影响因子：
1.6
通讯作者：
A. W. Palmer
中科院分区：
文献类型：
--
作者：
Zhiyi Zhang;K. Grattan;A. W. Palmer
介绍了一种用于从室温到≳700 °C连续温度测量的光纤传感器。该装置是基于用工作在670 nm的半导体激光器的光激发合成晶体紫翠宝石并测量其荧光寿命。描述了一种简单的低成本光学结构，并介绍了一种新的有效的荧光寿命测量信号处理方案，该方案具有高的灵敏度和重复性，最高可达±1 °C。
A fiber‐optic sensor for continuous temperature measurement from room temperature to ≳700 °C is presented. The device is based upon the excitation of the synthetic crystal alexandrite with light from a diode laser operating at 670 nm and the measurement of its fluorescence lifetime. A simple low cost optical configuration is described together with the introduction of a new effective signal processing scheme for fluorescence lifetime measurement, and a high sensitivity and repeatability are observed, at best ±1 °C.