| 摘要 |
PURPOSE:To implement a highly accurate strain measurement with a reduced effect of deviation in mount screws or the like by providing an inclined surface on a pedestal mounted on the surface of material to be measured parallel to the direction of applying a load to place a strain measuring apparatus. CONSTITUTION:A pedestal is mounted on the surface of material to be measured parallel to the direction of applying a load. On the surface thereof opposite to the mount surface for the pedestal, an inclined surface is formed in such a manner as to approach the mount surface with respect to the direction of applying a load and a strain measuring apparatus is mounted in contact with the inclined surface. For example, pedestals 18-1 and 18-2 are mounted on the surface of the material 11 to be measured parallel to the direction of a load F and a strain measuring apparatus 15 is mounted with screws 16-1 and 16-2 in contact with inclined surfaces 19-1 and 19-2 of the pedestal. Even if any radial devia- tion is caused between the above-mentioned screws and screw holes 14-1 and 14-2, its effect on th results of the strain measurement can be reduced according to the angle theta of the inclination thereby enabling a highly accurate measurement. |
