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26 March 1998 Infrared thermography and ultrasound for both testing and analyzing valves
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The leakage in valves in general could mean high economic loses and also can cause many trouble to any industrial installation or power facilities. Especially in steam valves and traps must be carefully checked because a wrong close may cause loss of energy. Avoiding the leakage is the challenge in any maintenance organization. The test of how closed a valve is with IR thermography offers the users one quite approximate idea of what is the real situation in a valve inspected. Supplementing the IR inspection with passive ultrasonic test give to whole inspection more precision of what happened. This work seeks to bring near the IR thermography with ultrasound with the purpose of understanding that exists an excellent complement between both technologies.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Andres E. Rozlosnik "Infrared thermography and ultrasound for both testing and analyzing valves", Proc. SPIE 3361, Thermosense XX, (26 March 1998);

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