Kim, Hojoon Lee, Kanghyeon Jo, Geonhui Kim, Jun-Sik Lim, Myo Taeg Cha, Youngsu 2024-01-19T13:33:50Z 2024-01-19T13:33:50Z 2022-01-10 2021-10 1083-4435 https://pubs.kist.re.kr/handle/201004/116327 In this article, a novel sensing structure is proposed to measure tensile loading. The sensing structure is motivated by the operating principle of the tendon. The fibroelastic characteristic of the tendon is implemented by combining sewing and elastic threads with a piezoelectric material, that is, a tendon-inspired piezoelectric sensor. The mechanical deformation of the tendon-inspired piezoelectric sensor was analyzed by applying tensile loading. Additionally, the electrical response according to the given tensile loading was measured and compared with the theoretical expectation. The experimental results found that the sensor outputs can be represented as a linear function along with elongation in a specific range. Furthermore, the motion-detecting capability of the sensor was demonstrated using body supports with seven tendon-inspired piezoelectric sensors. To show the feasibility of its application, a real-time motion detecting system using a virtual avatar was developed. The avatar showed good synchronization with the subject's upper-limb movements. This study provides insight into the sensing characteristics of the tendon-driven piezoelectric sensor and shows the potential for biometric applications. English IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC ACTUATION DESIGN MOTION SHOULDER BEHAVIOR SYSTEM Tendon-Inspired Piezoelectric Sensor for Biometric Application Article 10.1109/TMECH.2020.3041877 1 IEEE-ASME TRANSACTIONS ON MECHATRONICS, v.26, no.5, pp.2538 - 2547 IEEE-ASME TRANSACTIONS ON MECHATRONICS 26 5 2538 2547 scie scopus 000707442500030 2-s2.0-85097363999 Automation & Control Systems Engineering, Manufacturing Engineering, Electrical & Electronic Engineering, Mechanical Automation & Control Systems Engineering Article ACTUATION DESIGN MOTION SHOULDER BEHAVIOR SYSTEM Robot sensing systems Loading Sensors Tendons Piezoelectric materials Mechatronics IEEE transactions Bioinspired biometric piezoelectric material sensor