DLR PSP system intensity and lifetime measurements

Abstract

DLR started at 1995 with there own PSP activities. A phase of extensive exploration of hard- and software components followed and internal measurements using the intensity and lifetime method which includes spectra, calibration curves, etc. were performed. A repeatability study was made on the DASA HYTEX model, comparing the Inteco OPMS measurements from 1992/94 with the now existing DLR PSP system. Therefore, different lamps and laser illumination systems were tested. This included several cameras (intensified CCD and non-intensified CCD) for comparison of different paint samples in an external calibration chamber. After these pre-tests in the calibration chamber, measurements were performed in the Transonic Wind Tunnel Gottingen (TWG).