A novel pyrene-based binary pressure sensitive paint with low temperature coefficient and improved stability

Effect of particle size and dopant concentration on photophysical properties of Eu3+-doped rare earth oxysulphide phosphor coatings

“…Average particle size (m) [7][8][9]. The luminescence decay curves of the red phosphor coatings at 25 • C were recorded in the multichannel scaler (MCS) mode and are shown in Fig.…”

“…Eu 3+ -doped phosphors exhibit high-intensity emission lines in the spectral red region. These red phosphors have been used as a reference luminophore in surface pressure sensor coatings for aerodynamic applications (popularly known as pressure sensitive paints, PSPs) to apply correction for excitation intensity variations during wind tunnel tests [7][8][9][10][11][12]. The main advantage of PSP technique compared to pressure transducers is the high spatial resolution of surface pressure data on the model surface.…”

“…Eu-doped gadolinium oxysulphide has been used as reference dye in pyrene-based binary PSPs [7,8]. Basu et al [9] have used Eu-doped rare earth oxysulphide as reference luminophore for a novel pyrene-based binary PSP with improved stability. The other requirements for the phosphor are high luminescence efficiency, small particle size and low temperature sensitivity.…”

Effect of polymer matrix on the performance of pressure‐sensitive paint comprising 5,10,15,20‐tetrakis(pentafluorophenyl)porphinato platinum(II) and poly(1,1,1,3,3,3‐hexafluoroisopropyl‐co‐tert‐butyl methacrylates)

“…Because the analyte of PSP is the oxygen molecule, the permeability of oxygen molecules in the polymer matrix is essential for successful measurement. Typical oxygen‐permeable polymers in PSP applications are polydimethylsiloxane, fluorinated polymethacrylates and poly(3‐trimethylsilyl‐1‐propyne) …”

Evaluation of the Effects of Illumination, Temperature and Painting Finish in PSP Technique

“…The method provides, in a non-intrusive way and with high spatial resolution, quantitative pressure values on a model surface (Engler et al, 2000). The main advantages of the PSP technique are the high resolution, which allows a complete pressure mapping of the entire surface of the model (Basu et al, 2009) and the possibility of obtaining data pressure at locations where it would be impossible with conventional methods (Kurita et al, 2006). The PSP technique is very feasible for predicting aerodynamic loads and validating computational fluid dynamics (CFD) data.…”