Norio Yoshizawa

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About

Norio Yoshizawa is a pioneering figure in the development of advanced sensing technologies for underground construction and robotics. His key research areas include electromagnetic sensing systems, thin-film magnetometers, and precision positioning for tunnelling robots. Yoshizawa’s most notable contribution is the design of an innovative electromagnetic system that determines the real-time position of tunnelling robots using a thin, highly sensitive magnetometer array. This system features a 1.3 mm thick planar coil sensor sheet spread over the ground above the tunnel site, enabling non-invasive, accurate tracking during excavation. Although his seminal 2000 paper has accrued 2 citations, its conceptual and engineering impact is significant, laying groundwork for safer, more efficient underground infrastructure projects. Yoshizawa’s work exemplifies the fusion of materials science and robotics, demonstrating how ultra-thin sensor arrays can solve practical challenges in civil engineering. His achievements highlight a career dedicated to miniaturized, high-sensitivity instrumentation for real-world applications.