气动力压敏漆发光特性研究

以钌配合物为探针分子,分散于经溶胶凝胶法制备的SiO₂基质中形成对空气压力变化敏感的压敏漆。测定了它们的发光光谱及其氧猝灭性能,定量研究了发光和氧猝灭的关系,并将压敏漆用于风洞模拟试验,在较宽压力变化范围内获得了良好的线性关系。表征对压力变化灵敏度的直线斜率高达0.75.显示出所制备的空气动力压敏漆的性能优异,具有开发应用前景。

LUMINESCENT CHARACTERISTIC OF NOVEL AERODYNAMIC PRESSURE SENSITIVE PAINT

An outstanding novel aerodynamic pressure sensitive paint (PSP) was prepared, in which Ru 2+ complexes were employed as oxygen sensitive probe molecules, which were dispersed into the thin film SiO 2 matrix prepared through sol gel method. Their luminescent spectra and characteristic of oxygen quenching were measured, and the quantitative relationship between the luminescence and oxygen quenching was studied. The novel PSP was tested in a windtunnel simulating experiment in which a good linear relationship between emission intensity and oxygen partial pressure was achieved in a wider pressure variation range and the slope that represents the sensitivity of PSP for oxygen quenching reaches 0.75. This technique appeared a potential application in the aerodynamic pressure determination.