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Publications (3/3 displayed)
- 2022Optical Strain Gauge Prototype Based on a High Sensitivity Balloon-like Interferometer and Additive Manufacturingcitations
- 2021Experimental investigation of a strain gauge sensor based on Fiber Bragg Grating for diameter measurementcitations
- 2014Remote curvature fiber sensors using core mismatch structures and OTDR based interrogationcitations
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document
Remote curvature fiber sensors using core mismatch structures and OTDR based interrogation
Abstract
In this work, a remote curvature sensor using a standard OTDR as the interrogation system is presented. This approach uses a core diameter mismatch sensor which is formed by a short section of a multimode fiber, with a length of 3 mm, sandwiched between two singlemode fibers. In this case, the attenuation of the optical signal will vary as the fiber is bent allowing interrogating the sensor with OTDR technology. Preliminary results indicate a resolution range of similar to 0.0003 cm(-1), sensitivity in the range of similar to-208.46 dB/cm(-1) and a variation of 2.67 dB in the OTDR trace within the bend radius range.