| 摘要 |
<p>The present invention relates to a rotatable measuring target comprising: a target portion in a semi-spherical shape having a target on an upper portion; a target containing portion having a containing groove which contains the target portion in a semi-spherical shape; a magnet portion magnetically combined inside a lower portion of the target containing portion; and a cover portion containing the magnet portion combined with the target containing portion on the lower portion of the target containing portion. The target containing portion and the magnet portion have penetration holes of which the centers are penetrated. The rotatable measuring target can easily remove a foreign material which may be caught between the targets, as well as measuring exactly as a change in direction is easily free while not being influenced by place, but facilitating a rotation.</p> |
