| 摘要 |
PURPOSE: A light deformation sensor is provided to measure the deformation of facilities with readjusting tensile force according to the degree of the deformation by adapting the hypersensitive sensor. CONSTITUTION: A light deformation sensor having one side connected with a light source(80) and the other side connected with a loss measuring machine(90) for measuring the deformation degree of facilities, which includes a fixed member(30) fixedly installed in a predetermined position of the facilities, a base(10) fixedly installed in a predetermined position of the facilities and having a guide groove(11) in the front, a variable member(20) having a guide protrusion in the rear to be slideably jointed in the guide groove of the base and having a screw hole penetrated parallel with the guide protrusion in the center, a feeding screw(60) spirally jointed in the screw hole of the variable member, a driving motor(50) fixedly installed in the base for rotating the feeding screw at a predetermined angle, an optical fiber(40) wound on the fixed member and the variable member to receive a predetermined tensile force and receiving tensile force according to the deformation of the facilities and side pressure according to the variations of the tensile force, and a control unit electrically connected with the loss measuring machine and the driving motor for operating the driving motor according to the preliminarily input if the measured value sensed in the loss measuring machine is over a fixed value.
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