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Development and evaluation of a piezoelectret insole for energy harvesting appl...
Amorim, Marcio L. M.; Ginja, Gabriel Augusto; Moreira, Melkzedekue de Moraes Alcântara Calabrese; Junior, Oswaldo Hideo AndoThis work presents the development and experimental validation of a low-cost, piezoelectret-based energy harvesting system integrated into a custom insole, as a promising alternative for future self-powered wearable electronics. The design utilizes eight thermoformed Teflon piezoelectrets, strategically positioned in high-impact regions (heel and forefoot), to convert footstep-induced mechanical motion into ele...
Open-Source Data Logger System for Real-Time Monitoring and Fault Detection in ...
Amorim, Marcio Luís Munhoz; Lima, Jorge Gomes; Torres, Norah Nadia Sánchez; Afonso, José A.; Lopes, Sérgio F.; Carmo, João P. P. doThis paper presents the design and development of a proof-of-concept (PoC) open-source data logger system, designed for wireless data acquisition via Wi-Fi, aimed at bench testing and fault detection in combustion and electric engines. The system integrates several sensors, including accelerometers, microphones, thermocouples, and gas sensors, to monitor critical parameters such as vibration, sound, temperature...