This paper provides a summary of the Australian experience with infrared thermography as a nondestructive inspection (NDI) tool for through-life support of aircraft within the Australian Defence Force (ADF). It covers the key variants of active thermography including flash, synchronous (or lock-in), and sonic as well as thermoelastic stress analysis and presents a range of applications to milit...

Delamination is one of the most common defects in laminate composite materials. To detect delaminations, different non-destructive test methods such as infrared thermography methods are currently widespread for non-destructive inspection, recommended for evaluating composite materials mostly in the active variant. The principle behind infrared thermography consists in highlighting the relevant ...

We compared the daily rhythms of body core temperature and surface temperature in 10 Comisana ewes housed at thermoneutrality (25°C) and in the cold (9°C). Core temperature was measured with a rectal probe, whereas surface temperature (in the eye, forehead, and foot) was measured by infrared thermography, at 3h intervals for 27 consecutive hours under each condition. We found a robust rhythm of...

J. Anim. Sci. Vol. 88, E-Suppl. 2/J. Dairy Sci. Vol. 93, E-Suppl. 1/Poult. Sci. Vol. 89, E-Suppl. 1 M431 Prediction of residual feed intake in beef heifers by infrared thermography. J. J. Colyn*1, A. L. Schaefer1, J. A. Basarab2, E. K. Okine3, T. Liu1, K. L. Robertson2, and S. L. Scott4, 1Agriculture and Agrifood Canada, Lacombe Research Centre, Lacombe, AB, Canada, 2Alberta Agriculture, Lacomb...

A comment on G. Litscher: Infrared thermography fails to visualize stimulation-induced meridian-like structures. Biomed. Eng. OnLine 2005, 4:38 (15 June 2005), with a response by the author.

Active infrared thermography has been used for the detection of sub surface defects in road materials. The step heating method was selected, and two different infrared cameras selected. Defects were detected with an heating phase as short as 60 seconds. Some images treatments were employed, and have been able to extract signal in spite of the porosity and of the high heterogeneity of a road mat...

In this paper a novel approach is proposed which combines simultaneously advantages both of pulse (PT) and modulated (MT) infrared thermography. In a nondestructive evaluation perspective, the specimen is pulse-heated as in PT and the mix of frequencies of the thermal waves launched into the specimen are unscrambled by performing the Fourier transform of the temperature evolution over the field...

Microwave thermography, a method of sensing subcutaneous temperatures, was used in a breast cancer detection study of about 5,000 female patients. The data were taken at wavelengths of 9.1 and 23 cm. Microwave thermography at 23 cm has true-positive and true-negative detection rates of 0.8 and 0.6, respectively, comparable to those of infrared thermography (0.7) and inferior to those of xeromam...

The origin of infrared thermography comes in 1800 when William Herschel discovered thermal radiation, the invisible light later called infrared, but only in the mid-sixties infrared thermography became a technique of temperature cartography. He proved that this radiation, called infrared, followed the same law as visible light. Later, this phenomenon was connected with the laws of Planck and St...

OBJECTIVES To correlate Frey's syndrome with subjective symptoms, Minor's starch iodine test results, and infrared thermography measurements, and to discuss the utility of thermography as a quantitative diagnostic method. METHODS This study included 59 patients who underwent unilateral parotidectomy. A subjective clinical questionnaire and an objective Minor's starch iodine test were performe...