OPTICAL FIBER LATTICE PRESSURE DISPLACEMENT SENSOR HAVING A TEMPERATURE COMPENSATING STRUCTURE CAPABLE OF ACCURATELY MEASURING DISPLACEMENT CAUSED BY PRESSURES

摘要

PURPOSE: An optical fiber lattice pressure displacement sensor having a temperature compensating structure is provided to utilize optical fibers and to include optical fiber fixing units, thereby facilitating the installation of the pressure displacement sensor.;CONSTITUTION: A pressure displacement sensor (F1) using an optical fiber lattice sensor includes a body (5), a diaphragm, optical fibers (1), a first optical fiber fixing unit (8), and a second optical fiber fixing unit (12). Pressures are applied inside the body. The diaphragm is included inside the body and bent or recessed depending on the applied pressures. The optical fibers transmit measured displacement due to the applied pressures. The first optical fiber fixing unit is fixed to the diaphragm and fixates the optical fibers. The optical fiber lattice sensor is connected between the optical fibers and relaxed or contracted depending on the applied pressures, thereby measuring the displacement. The optical fibers are fixated on the second optical fiber fixing unit with a fixing agent (14).;COPYRIGHT KIPO 2013