| 摘要 |
PURPOSE:To facilitate the measurement of the position of a three-dimensional body, by placing one or a plurality of mirrors around the side or the like of the three-dimensional body, displaying the body and the image on the mirror on one screen at the same time, and analyzing the body and the image. CONSTITUTION:For example, one mirror 3 is appropriately positioned with respect to a body 2 on an experiment table 1. A mirror image 4 of the body and the body 2 are photographed by a camera (not shown) and the like as a picture on one screen. The picture is analyzed manually or by an electronic computer, and the positions of the characteristic points of the vortex and the like of the body 2. |
