To obtain a copy of a specific publication, users should contact the publication's publisher directly.
Abstract
This paper discusses issues associated with the accuracy of using infrared scanning radiometers to generate temperature maps of building envelope components under steady-state, controlled laboratory conditions. Preliminary experimental data are presented for the accuracy and uniformity of response of one commercial infrared scanner. The specified accuracy of this scanner for temperature measurements is 2C of 2% of the total range of values (span) being measured. A technique is described for improving this accuracy using a temperature controlled external reference emitter. Minimum temperature measurement accuracy with a referece emitter is estimated at +/-0.5C for ambient air and background radiation at 21.1C and surface temperatures from 0C to 21C.
This paper discusses issues associated with the accuracy of using infrared scanning radiometers to generate temperature maps of building envelope components under steady-state, controlled laboratory conditions. Preliminary experimental data are presented for the accuracy and uniformity of response of one commercial infrared scanner. The specified accuracy of this scanner for temperature measurements is 2C of 2% of the total range of values (span) being measured. A technique is described for improving this accuracy using a temperature controlled external reference emitter. Minimum temperature measurement accuracy with a referece emitter is estimated at +/-0.5C for ambient air and background radiation at 21.1C and surface temperatures from 0C to 21C.
Date
12/1995
12/1995
Author(s)
B Griffith; F Beck; D Arasteh; D Turler
B Griffith; F Beck; D Arasteh; D Turler
Page(s)
515-524
515-524
Keyword(s)
infrared thermography; insulated system; temperature map; fenestration heat transfer
infrared thermography; insulated system; temperature map; fenestration heat transfer