荧光法表面静压测量研究

STATIC PRESSURE MEASUREMENT BASED ON OXYGEN QUENCHING OF FLUORESCENCE

本文利用氧致荧光猝灭效应，在实验上得到荧光强度随静态压强变化的正比关系曲线，与用Ｓｔｅｒｎ－Ｖｏｌｍｅｒ方程和亨利定律分析的结果完全一致。这种方法可以用于风洞中被测物体表面压力及流场的测试，具有经济、灵敏、不破坏试件，工艺简单等特点。

The variation of thenuorescence intensity versus the static pressurehas been measured ex-perimentally,which is based on the oxygen quenching of fluorescence and agrees well with the theoret-ical analysis utilizing Stern-Volmer equation and Henry'law。This kind of method can be used to mea- sure the surface pressure and the surface flow visualization of the model in wind tunnels,it has the ad-vantages of inexpensive,sensitive,and simple.