Abstract
Pressure- and Temperature-Sensitive Paints (PSP and TSP) is promising measurement technique for thermo-fluid phenomena, because they enable us to non-intrusively measure the pressure/temperature distribution on the surface to which PSP/TSP is applied. The PSP/TSP measurement technique is based on oxygen/thermal quenching of the luminescence of PSP/TSP dyes. For the precise measurement, small change of the luminescent intensity is precisely detected by a photodetector. Then, the application of PSP and TSP is limited to the measurements in aerospace engineering. We have applied PSP to pressure measurements of micro-scale flows and of the rotating disk inside an HDD. The PSP/TSP is usually applied to a model surface by a sprayer (by hand). Recently, we have proposed inkjet-printed PSP and TSP with highly controlled PSP and TSP arrays and high reproducibility.
