| 초록 |
In this study, a new wearable multimode sensor based on textile structure with pre- strained monofilament was proposed, which features two modes. First, the vibration mode detects bio-signals from voice printing, respiration and blood pulse. Second, the tensile and compression mode, which detects signals from body movement based on pressure of fingertip and gait, four movement of neck, and joint movement (elbow and knee). Previous research studies mainly focused on investigation on how to enhance the output performance of piezoelectric PVDF film via nanostructure. However, this study explores how macro-sized textile structure can improve the piezoelectric performance of PVDF film and the sensitivity of conductive yarn patterned textile. The multimode sensor utilizes the pre-strained monofilament of textile structure as a pressure transmitter to create amplified strain resulting from multi-local strain (MLS) in PVDF film in order to improve the PVDF piezoelectric performance. |
