PDMS-embedded wearable FBG sensors for gesture recognition and communication assistance

作者：Kun Xiao, Zhuo Wang, Yudong Ye, Chuanxin Teng, Rui Min · 发表于：Biomedical Optics Express · 年份：2024 · DOI：10.1364/boe.517104 · 被引用次数：31 · 研究领域：Advanced Fiber Optic Sensors、Advanced Sensor and Energy Harvesting Materials、Tactile and Sensory Interactions

This study introduces fiber Bragg grating (FBG) sensors embedded in polydimethylsiloxane (PDMS) silicone elastomer specifically engineered for recognizing intricate gestures like wrist pitch, finger bending, and mouth movement. Sensors with different PDMS patch thicknesses underwent evaluation including thermal, tensile strain, and bending deformation characterization, demonstrating a stability of at least four months. Experiments revealed the FBG sensors' accurate wrist pitch recognition across participants after calibration, confirmed by statistical metrics and Bland-Altman plots. Utilizing finger and mouth movements, the developed system shows promise in assisting post-stroke patients and individuals with disabilities, enhancing their interaction capabilities with the external surroundings.