| 摘要 |
PURPOSE:To enable the use in a narrow place as well without requiring any light source by detecting the index which indicates the displacement of a measuring object as a picture image by means of a fiber for image transmission. CONSTITUTION:An index 2 which is displayed in color is mounted to a measuring object 1 which displaces vertically. The index 2 is so arranged as to displace according to the displacement of the object 1. The index 2 is detected as a picture image through a lens 4 by means of a fiber 3 for image transmission which is fixed near the same so as to oppose to said index. |
