| 摘要 |
PURPOSE:To decide immediately which position of an object to be photographed is checked as to its time aging by displaying simultaneously a temperature distribution image of the whole object to be photographed, on the same picture, and also displaying a marker for showing a time aging measuring position in its whole image. CONSTITUTION:A thermography device has an infrared-ray detector 1, an optical scanner 2, a reference black body 3 for making a reference infrared-ray incident to the detector at every horizontal scanning by the optical scanner 2, a marker writing circuit for writing a marker line, etc. Also, readout circuits 19, 20 read out data of the whole image and data of a marker from memories 12, 17 in its period, add them by an adding circuit 22, and send them to a display device 11 through a converting circuit 25. In this way, the whole image of an object to be photographed and the marker line superposed on it are displayed in an area of the display device, and which position of the object to be photographed is checked as to its time aging is decided immediately. |
