Papers
1
Total Citations
6
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1
About
Ryuji Usui has made foundational contributions to the development of fiber optic gyroscopes (FOGs) for industrial applications, focusing on practical, cost-effective navigation and positioning systems. His key research areas include fiber optic sensing, inertial navigation, and industrial automation. Usui’s most notable work, "Intermediate and moderate grade fiber optic gyroscope for industrial applications" (1994, 6 citations), introduced a minimum reciprocal configuration using single-mode fiber coils to reduce production complexity while maintaining reliable performance. This design enabled FOGs to be deployed in positioning systems, self-guided robots, and bore-hole survey systems—bridging the gap between high-cost military-grade sensors and low-accuracy consumer devices. Although his citation count is modest, Usui’s impact is evident in the practical adoption of his moderate-grade FOGs across multiple industries, demonstrating how targeted engineering can democratize advanced sensing technology. His work remains a reference for researchers seeking to balance performance, cost, and manufacturability in optical gyroscope design.
Research Focus
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