Evaluation of Hand-Held Infrared Thermometers for Wall Thermal Resistance Determinations,

摘要

Hand-held infrared (IR) non-contact surface thermometers from two manufacturers were tested to evaluate their effectiveness in measuring surface temperatures for the determination of the thermal resistance of walls. Two phases of the test were performed,first a laboratory test of a wood-frame wall,followed by a field test of a brick veneer wood-frame wall. During both phases of testing,additional measurements of thermal resistance were made for comparative purposes,using multijunction thermopiles and heat flow meters. An error analysis of the thermal resistance measurement procedure using IR surface thermometers was also performed.