| 摘要 |
PROBLEM TO BE SOLVED: To provide a vibrational displacement measuring device for measuring a displacement with an accuracy almost equal to that of an eddy current displacement gauge even at a high temperature, and inexpensively measuring the displacement. SOLUTION: This vibrational displacement measuring device is composed of a sensing lever 3 curvedly deformable when mechanical strain is applied, a strain gauge 4 installed on the 3, and outputting an electric signal according to a strain quantity by straining when curved deformation is caused in the 3, an installing base 1 fixed to a neutron reflector 41 by a machine screw 8, and fixing and supporting one end side of the 3, a bolt 6 for adjusting contact pressure of a displacement measuring part of the 3 and the 41 so that strain actually received by the 4 corresponds to relative displacement outputted from the strain gauge, and adjusting an interval between the free end on the opposite side of the fixed end of the 3 and an offset mechanism body 2 fixed to the 1, and an offset quantity adjusting nut 7 for adjusting the effective length of the 6. COPYRIGHT: (C)2004,JPO
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