| 摘要 |
PURPOSE:To maintain the distance between a sensor and an object to be inspected or the contact pressure constant at all times and to suppress direct capturing of noise propagating in the air without requiring large scale system in nondestructive inspection where the object is subjected to impact and vibration thereof is detected thus determining the internal state of the object. CONSTITUTION:A vibration sensor 5 is fixed to the inside of the sticking face of a sucker 1 being stuck on a wall face 6 by means of a vacuum pump 3. When the sucker 1 is sucked, the vibration sensor 5 can be press fit to the wall face 6 by means of a spring 4 or can be spaced apart from the wall face 6 by a predetermined distance. The sucker 1 incorporating the vibration sensor 5 is employed in a wall face walking robot. When the sucker 1 is stuck on the wall face 6, external noise propagating in the air is suppressed because the interior of the sucker 1 is evacuated and thereby direct capturing of external noise is reduced significantly. |
