Optical fiber based soft curvature sensor with polyvinyl chloride reinforced silicone rubber substrate
| Autor: | Lianqing Zhu, Xiongxiong Zhang, Guangkai Sun, Fanyong Meng, Yanming Song |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Optical fiber
Materials science 02 engineering and technology Substrate (printing) 021001 nanoscience & nanotechnology Silicone rubber Curvature 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention 010309 optics chemistry.chemical_compound Polyvinyl chloride chemistry Fiber Bragg grating law 0103 physical sciences Calibration Fiber Electrical and Electronic Engineering Composite material 0210 nano-technology |
| Zdroj: | Optik. 178:567-574 |
| ISSN: | 0030-4026 |
| Popis: | To meet the demands for curvature measurement in the field of biomedical intelligent equipment, soft robots and complex structures of major infrastructures, an optical fiber based soft curvature sensor is proposed. The major contribution is obtaining a soft curvature sensor with extraordinary high sensitivity and repeatability. A silicone rubber sheet is glued on the surface of polyvinyl chloride to form polyvinyl chloride (PVC) reinforced silicone rubber substrate, the fiber Bragg grating is embedded into the substrate to form the sensor. The sensor is calibrated using standard curvature calibration blocks. The characteristic of the reflected spectrum of the sensor is analyzed. The relation between the sensitivity and the fiber embedded depth is obtained. The research results prove that the real-time measurement of structure curvature can be realized by the sensor. The polyvinyl chloride reinforced silicone rubber substrate is helpful to improve the sensitivity and repeatability of the sensor. The maximum sensitivity is up to 329.2pm/m−1. The sensor has good consistency in repeated measurements, it has application presents in measuring the curvature of flexible mechanisms and complex structures. |
| Databáze: | OpenAIRE |
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