Infrared surface temperature measurements in NAVSWC's hypervelocity wind tunnel No.9

The authors describe efforts at the US Naval Surface Warfare Center's Hypervelocity Wind Tunnel No.9 to measure wind tunnel model surface temperatures using a commercially available infrared (IR) camera. IR camera measurements on a Macor model surface tested at Mach 14 in Tunnel 9 are presented, and the data are compared to vapor-deposited thermocouple measurements made on the same substrate. The IR data were collected using an Inframetrics Model 600 infrared camera and were reduced using the camera manufacturer's software. The results of this analysis show the feasibility of making global nonintrusive heat transfer measurements using an infrared camera.<>