[en] The infrared technique as a new method is more useful for research of materials science. This paper simply describes the techniques of infrared temperature measurement and thermography and provides the experimental data of some metals and alloys during the deformation and the fatigue process by use of the infrared sensing method. It is shown that the conventional tensile data can be correlated with infrared radiational energy change during the tensile pulling. The temperature field of metal during elastic-plastic deformation can be calculated by finite element analysis, and the thermoelastic effect of metal can be shown by thermography. The infrared technique can be used to predict the fatigue damage, monitor their propagations and give the alarm at fracture. Finally, it must be pointed out that the irreversibility of infrared emission of metal can be used as a basis of nondestructive testing. (author)

[en] The temperature distribution in targets is calculated and discussed for several beam profiles. Estimations for target calculation are given and checked experimentally which are used for beam profile monitors based on thermography. (author)

[en] This paper highlights important applications of thermography, the reasons behind its use, and the limitations and realities in performing the technique. It also defines how its rationale and application in nuclear power stations differ from those outside the industry

[en] After a brief description of the development and fundamentals of thermography, the procedure for using the heat flow method of thermal visualisation for material faults and inhomogeneities is explained. Emphasis is given to testing technology examples from the fields of structural electronics and the non-destructive testing of rubber and other coatings. The survey is supplemented by an example of the application of thermography to thermo-elastic stress analysis. (orig.)

[en] This document is a survey of the technical literature concerning aspects of phosphor materials science and spectroscopy which are of interest. These materials are the basis of temperature measurement methods currently under development. The numerical identification to the left of each citation is that given in the Physics Abstracts. 750 refs

[en] This book contains papers presented at a conference of the International Society for Optical Engineering. Topics covered include: infrared thermography as quality control for foamed in-place insulation; processing IR images for high speed power line inspection; and case study of applying infrared thermography to identify a coolant leak

[en] An important consideration in the design of high frequency electromagnetic devices is the effect of conductor shape on current distribution. As a rule of thumb, at high frequency the cross-sectional current distribution resembles a charge distribution in a charged conductor, with current travelling along the surface and particularly along edges. However when other conductors are present the current distribution may change dramatically. At BHP Research some novel electromagnetic devices are being developed. While the details are proprietary, in one of these the current distribution is an important factor in determining the ultimate performance of the device. Thus we required an experimental technique to analyse the current path. Thermographic imaging was considered because heating is proportional to I². The conductors carry very high currents (thousands of ampere) at high frequencies (thousands of hertz) and are water cooled through their hollow centers. Two conductor profiles were tested; circular and rectangular. Calculated current distribution in a finite element model showed the landscape design as being the most efficient current carrier

[en] In conventional power plants, the long-time exposure is, among others, a detrimental factor for the materials used. If the deterioration exceeds a specific limit, the component has to be replaced. This is frequently done prematurely, because the many influences acting on the component connot be assessed correctly. To avoid this, the actual degree of deterioration of the component and its remaining service life can be determined by microthermography. (orig.)

[en] Thermographic recording and visualization of temperature entropy diagrams, temperature distributions, and dynamic temperature changes on object surfaces may be represented with astonishing quality at the present state of infrared technique. This novel method exceeds the conventional punctiform temperature measuring method by several orders of magnitude as far as economy, versatility, and significance of the results are concerned. This paper describes the physical principles of thermal radiation and compares the performance criteria of commercial thermography equipment. In some examples of application, the possibilities and limits of this young technology are discussed. (orig.)

[en] Lubricant analysis has always played an important yet somewhat invisible role in equipment health monitoring. At its most primitive, simple observations and field testing alert equipment operators to changing conditions. At its most advanced, data from performance and analytical tests are used to develop or select optimum lubricants for service, stretch drain intervals, predict remaining equipment life and identify potential equipment or system problems at an incipient stage. Coupled with thermography and vibration analysis, lubricant analysis can become a major component of a comprehensive predictive maintenance (PM) program. Ontario Hydro finds itself at a turning point regarding the use and monitoring of lubricants. Increasing emphasis on equipment reliability and plant life extension, coupled with major, recent changes in lubricant composition in response to environmental, energy and safety concerns, forces an upgrading of many aspects of lubricant monitoring so that it may establish itself as a key part of modern PM practices. This paper discusses some of these aspects. (author)