| 摘要 |
PROBLEM TO BE SOLVED: To provide a groundwater flow measurement apparatus which measures an extremely-low-speed groundwater flow which has been regarded as difficult to measure by suppressing heat generation from a CCD camera and a lighting device. SOLUTION: The groundwater flow measurement apparatus using a tracer takes an image of the flow condition of the tracer floating in water by imaging means and is used for a groundwater flow measurement method which measures the flow rate and flow direction of groundwater from an taken image. The groundwater flow measurement apparatus takes an image of the tracer with a stereo image, analyzes the image, and measures the flow rate and flow direction of the groundwater. The apparatus comprises imaging means, a parallactic optical system, a groundwater passage section, and a lighting section. The lighting section is characterized in that a light source introduction member comprising an optical fiber to which a light source can be introduced is allowed to pass through the pillar and that a light source introduction member tip lighting section is arranged toward the groundwater passage section so that it can be lighted. COPYRIGHT: (C)2005,JPO&NCIPI |
