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About

Jiyun Zhang is an emerging researcher specializing in precision measurement, industrial robot calibration, and metrology instrumentation. His work centers on developing innovative passive laser tracking systems that address longstanding challenges in robot accuracy and large-scale spatial measurement. Zhang's most significant contribution is the conception and refinement of the 3D Passive Laser Tracker (3DPLT) and its successor, the 3D Passive Scale Tracker (3DPST) — instruments designed to measure spatial positional and pose errors in industrial robots without relying on complex active servo-driven mechanisms. Unlike conventional laser trackers that depend on built-in servo systems for target tracking, Zhang's passive approach simplifies the instrumentation while maintaining high measurement fidelity, making calibration more accessible for industrial environments. His 2022 papers on accuracy improvement and foundational design of the 3D passive laser tracker have collectively attracted over 50 citations, reflecting strong community interest in cost-effective robot calibration solutions. His more recent 2024 work extends these principles into practical manufacturing applications, demonstrating real-time drilling error compensation on Epson industrial robots using geometric error modeling and nonlinear optimization. Together, Zhang's publications represent a coherent and impactful research trajectory pushing the boundaries of robot metrology toward greater precision, simplicity, and industrial applicability.