| 摘要 |
PURPOSE:To easily specify the leak place of liquid by monitoring an object monitor area by an infrared camera and making the variation position of its infrared-ray radiation distribution correspond to the position of an object image corresponding to a visible image. CONSTITUTION:The monitor area 2 including piping 1 to be monitored is monitored by the infrared camera 3. The signal of the camera 3 is processed by an infrared-ray radiation temperature processing part 41 and an object image (piping image) processing part 42 respectively. A variation detection part 43 compares temperature distribution images obtained by the temperature processing part 41 at different times and when variation at leak liquid temperature is detected, both images are put one over the other to specify the leak place 5 of liquid by a weight comparing part 44. Thus, the variation position of the infrared-ray radiation distribution is made to correspond to the position of the object image to easily specify the leak place 5.
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