Abstract

A comparison study of shortwave (3–5-μm) and longwave (8–12-μm) measuring thermal imaging systems has been conducted. The study was limited to systems working in indoor conditions, as is typical in many industrial and scientific applications. A theory of the influence of measurement conditions and system parameters on the accuracy of temperature measurements has been developed. On the basis of the developed formulas an analysis of the influence of signal disturbances (because of incorrectly assumed emissivity, radiation reflected by the object, radiation emitted by system optics, limited transmittance of the atmosphere, and limited temperature resolution of the system) on the accuracy of temperature measurement has been made. It has been found that the shortwave systems in typical measurement conditions offer generally better accuracy in temperature measurement than the longwave ones do.

© 1995 Optical Society of America

Experimental verification of a theory of the influence of measurement conditions on temperature measurement accuracy with IR systems

Krzysztof Chrzanowski
Appl. Opt. 35(19) 3540-3547 (1996)

Retrieval of geophysical parameters from Moderate Resolution Imaging Spectroradiometer thermal infrared data: evaluation of a two-step physical algorithm

Xia L. Ma, Zhengming Wan, Christopher C. Moeller, W. Paul Menzel, Liam E. Gumley, and Yulin Zhang
Appl. Opt. 39(20) 3537-3550 (2000)

Errors of temperature measurement with multiband infrared systems

Krzysztof Chrzanowski and Marek Szulim
Appl. Opt. 38(10) 1998-2006 (1999)

Performance of fused silica as a filter in a wide field-of-view earth radiation budget radiometer

John E. Cooper and Michael R. Luther
Appl. Opt. 19(11) 1798-1803 (1980)

Effect of atmospheric attenuation on temperature measurements made using IR scanning systems

Thomas P. Sheahen
Appl. Opt. 22(7) 1070-1077 (1983)