A series of low speed ( M less than 0.2 ) experiments using University of Washington Fib-07 Pressure Sensitive Paint ( PSP ) have been conducted at NASA Ames on a NACA 0012 airfoil . Significant improvements in results have been shown : PSP calibration errors of the improved data ( with pressure taps as a reference ) now agree with theoretical error limits . Additional measurements on the 0012 airfoil using Temperature Sensitive Paint have been made . These TSP measurements now fully quantify the impact of temporal temperature changes on model surfaces on PSP measurements . Finally , simultaneous PSP - TSP measurements have been performed , allowing in - situ temperature correction of PSP data with good results .