TEMPERATURE MEASURING METHOD BY INFRARED CAMERA

PURPOSE:To easily detect a defective part by switching a 1st and a 2nd temperature measurement range and picking up images before and after heating, and detecting a heat image part which has high heat data projecting from the periphery from the deviation value heat image between two composite heat i...

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Bibliographische Detailangaben
Hauptverfasser:	OKAMOTO SHOHACHI, MATOBA YUJI, KIMURA TOYOKICHI, SAKAI SADAAKI
Format:	Patent
Sprache:	eng
Schlagworte:	COLORIMETRY ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION RADIATION PYROMETRY TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
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Beschreibung
Zusammenfassung:	PURPOSE:To easily detect a defective part by switching a 1st and a 2nd temperature measurement range and picking up images before and after heating, and detecting a heat image part which has high heat data projecting from the periphery from the deviation value heat image between two composite heat images. CONSTITUTION:Each measurement range for obtaining a heat image by the infrared camera is divided into four measurement range without overlapping with each other, which are switched to pick up the infrared heat images of an object to be measured before and after the heating, thereby obtaining heat image effective ranges D - A in the respective measurement ranges. Then the heat image data in the ranges D - A are processed by a personal computer by superimposition, subtraction, etc., and the result is displayed on a CRT display device. Then the heat image part which has high heat data projecting from the periphery is detected as a defect from the deviation value heat image between the two composite heat images obtained by composition.