Flexible Optical Fiber Bending Transducer for Application in Glove-Based Sensors

Autor(es)

Fujiwara, Eric ^[1] ; Ferreira, Murilo ^[1] ; dos Santos, Marques ^[1] ; Suzuki, Carlos K. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Fac Mech Engn, Lab Photon Mat & Devices, BR-13083970 Campinas - Brazil

• Tipo de documento: Artigo Científico
• Fonte: IEEE SENSORS JOURNAL; v. 14, n. 10, p. 3631-3636, OCT 2014.
• Citações Web of Science: 17

Resumo

The development of a low-cost and flexible optical fiber transducer for measurement of angular displacements is reported. The light intensity attenuation due to fiber microbending losses is correlated to the variations in flexing angle, yielding to a sensitivity of 1.80 degrees. The device was also mounted in a fabric glove to the monitoring of flexion and abduction movements of index and thumb fingers. Once calibrated by a simple procedure, the glove-based system was capable to measure the angular positions with average errors <5 degrees and 7 degrees for interphalangeal and metacarpophalangeal joints, respectively. Additionally, the repeatability analysis resulted in average range and standard deviations of 8.06 degrees and 3.45 degrees, respectively. The optical fiber sensor provides a low-cost alternative to the real-time monitoring of hand posture, and can be suitable for applications in human-robot and human-computer interactions (AU)

• Processo FAPESP: 12/11943-0 - Desenvolvimento de sistema de sensoriamento a fibra óptica baseado em luva aplicado ao monitoramento dos movimentos da mão
• Beneficiário: Eric Fujiwara
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado