2003 年 23 巻 Supplement2 号 p. 179-182
This paper reports a new technique for measuring oxygen density distribution in space. The PSP (Pressure Sensitive Paint) are usually used for noncontact measuring pressure distribution on a surface. The pressure measurement is based on the phenomena of luminescence quenching by oxygen molecules. In order to measure the oxygen density distribution in space, instead of a surface pressure distribution, the PSParticle (Pressure Sensitive Particle) for seeding gas was developed. Due to the particles are always moving in space, the Double Frame Imaging (DFI) be developed. This new method can give the relationship between oxygen concentration and image intensity. The method that uses PSParticle can be obtained the velocity information as the PIV technique at same time. Therefore, this new technique has a possibility to compose the PIV-PSP hybrid system.