传感技术学报2019，Vol.32Issue(1)：57-61,5.DOI:10.3969/j.issn.1004-1699.2019.01.010
SrSiAlN3: Eu2+/胶黏剂复合材料荧光的压应力传感特性
Fluorescence Compressive Stress Sensing with SrSiAlN3 : Eu2+ /Resin Composites
摘要
Abstract
Stress-dependent fluorescence of SrSiAlN3: Eu2+ /resin composites and their stress sensing applications were studied for the first time. The experimental setup is a combination of a force loading apparatus and a fiber optic spectrometer. When a novel spectral characteristic-band barycenter-was employed for the active materials'emission spectra,blue-shift of the emission band barycenter was found with an increasing load of compressive stress onto the fluorescent composite. However, the intensity and peak wavelength of the fluorescence failed to be stress sensing signals. Repetitive calibration tests on the phosphor /silicone and phosphor /H610 composites gave piezospectroscopic coefficients as 0.20 nm/MPa and 0.31 nm/MPa, respectively. Such values are more than a thousand times of the coefficient of ruby, the standard piezospectroscopic material. Geometry of samples have no observable influence on the sensitivity. The sensing setup has a resolution fine as 0.055 MPa. The observation implies that the phosphor can be a candidate active material for optical wireless stress mapping.关键词
应力传感/荧光压谱/谱带重心/SrSiAlN3: Eu2+Key words
stress sensing/fluorescence piezospectroscopy/barycenter wavelength/SrSiAlN3: Eu2+分类
机械制造引用本文复制引用
秦朝菲,张巍巍,史久林,何兴道..SrSiAlN3: Eu2+/胶黏剂复合材料荧光的压应力传感特性[J].传感技术学报,2019,32(1):57-61,5.基金项目
国家自然科学基金项目(61665008) （61665008）
航空科学基金项目(2016ZD56006) （2016ZD56006）
江西省青年科学家培养对象计划项目(20153BCB23037) （20153BCB23037）
南昌航空大学研究生创新专项资金项目(YC2017045) （YC2017045）
