| 摘要 |
Disclosed is a non-contact sensor assembly for sensing metal comprising a sensor main body having at least a photoelectric conversion unit; a pair of optical fibers whose one end is combined with the sensor main body; a support for fixing the optical fiber; a permanent magnet located above the support; and a housing in which the accommodating space for accommodating the support and the permanent magnet is formed inside. The other end of the optical fiber is exposed to the inside of the accommodating space. The permanent magnet is moved by magnetic force of a sensing target object located outside the housing, so the permanent magnet forms a gap between the permanent magnet and the support. A light signal outputted from one among the optical fibers is reflected in the permanent magnet and inputted into the other. |
