| 摘要 |
PROBLEM TO BE SOLVED: To provide a displacement measuring device which measures not only the tilt angle of a measuring object but also the tilt direction simultaneously by one displacement measuring device, by constituting the displacement measuring device of an optical fiber sensor of an FBG system (fiber grating system). SOLUTION: This displacement measuring device is characterized by having: a casing; a suspension member suspended from the ceiling surface inside the casing; a weight connected to the suspension member; a plurality of weight pulling support materials for pulling and supporting the weight from the same height position in a plurality of directions on the casing side face; and a measuring part for measuring strain of each weight pulling support material. COPYRIGHT: (C)2007,JPO&INPIT
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