| 摘要 |
<p>The detecting device (1) comprises a telescopic carrying/guide bar (2) having an end which is mounted with a measuring probe (3). The carrying/guide bar has mutually displaceable anti-twisting outer and inner pipes (6,7), and an anti-rotation device. Two linear guides are arranged opposite to each other, such that the inner wall of outer pipe (6) is arranged in a longitudinal rib and the outer wall of inner pipe (7) is arranged in a guide rib having a recess to which the longitudinal rib is engaged.</p> |
