Use of a Variable Exposure Photographic Pyrometer to Measure Surface Temperatures on a Hemispherical-Face Model

摘要

The use of a photographic pyrometer for nonintrusive measurement of high temperature surfaces in a wind tunnel test is described. The advantages of the pyrometer for measuring surfaces whose unique shape makes use of thermocouples difficult are pointed out. The use of computer operated densitometers or optical processors for the data reduction is recommended.