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About

Renshi Sawada is a pioneering researcher in the field of robotic tactile sensing and precision force control, with a focus on developing novel optical-based sensors for robotic manipulation. His key research areas include slip detection, grasping force control, and micro-displacement measurement technologies. Sawada’s most impactful contribution is his work on grasping force control using a micro laser Doppler velocimeter (μ-LDV), which enables real-time slip detection and automatic adjustment of grip strength—a critical advancement for dexterous robotic hands handling fragile or slippery objects. This work, published in 2018, has garnered 28 citations and demonstrates the feasibility of high-response surface velocity sensing for robotic applications. He also developed a two-axial shearing force sensor using an optical sensor chip and elastic gum frame (16 citations), and a torque measurement device with an integrated microdisplacement sensor for robot arms. These innovations highlight his expertise in miniaturized, high-precision sensing systems that enhance robotic proprioception and environmental interaction. Sawada’s work bridges optical metrology and robotics, offering practical solutions for safe, adaptive robotic grasping and manipulation.