Abstract
Pressure measurement system using PSP (pressure sensitive paint) is the way for measuring O_2 partial pressure on the solid surface according to luminescence and its oxygen quenching. Recently, the usefulness of PSP has been expected. In this study, we apply two types of PSP to the pressure range lower than 1 Torr (133Pa), and examine PSP's fundamental properties such as luminescence intensity for abrupt change of pressure. Finally, we suggest the more suitable PSP for measuring the pressure on the solid surface in the low pressure range.
