| 摘要 |
PROBLEM TO BE SOLVED: To connect spherical bodies by line elements independent of a cable if a probe having a plurality of the spherical bodies connected by the cable is used, and prevent a detection range from being exceeded when the probe passes through a L-shaped pipeline. SOLUTION: In a hole path measurement apparatus, a hole measurement sensor (2) is embedded in the center (A) of each spherical body (20) for composing the probe (1). The spherical body (20) is connected to each other by two line elements (40) independent of the signal data cable (11). When the probe (1) is bent in the L-shaped pipeline (30), the detection range of the hole measurement sensor (2) is prevented from being exceeded. COPYRIGHT: (C)2011,JPO&INPIT |
