| 摘要 |
PROBLEM TO BE SOLVED: To provide a vibration displacement detecting device which can be simply configured at low cost, allows easy adjustment of a measurement range of displacement and vibration and is easily maintained. SOLUTION: A light receiving part 3 fixed on a reference point 2 of a structure 1 forming a part of a building, and a light emitting part 5 fixed on a moving platform 4 which is an object to be measured located distant from the reference point 2 are provided. The light receiving part 3 comprises a photodetector 6 and an optical system 7 for forming an image of the light emitting part 5 on a light receiving surface of the photodetector 6, and detects relative displacement or vibration between the reference point 2 and the object to be measured 4. The optical system 7 is a telescope type optical system, and the light emitting part 5 is constituted by a light emitting diode (LED). The photodetector 6 and the optical system 7 are integrally fixed and an adjustment tool 8 for adjusting a position of the photodetector 6 is provided on the connection portion between them. COPYRIGHT: (C)2009,JPO&INPIT
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