Chumnarn Punyasai

Harvard University, National Electronics and Computer Technology Center

Papers

Total Citations

H-Index

About

Chumnarn Punyasai is a researcher specializing in micro-robotics and sensor-based object detection, with a focus on developing innovative control and power delivery systems for miniature autonomous devices. His most notable contributions include the design and simulation of a wireless, walking scratch-drive micro-robot, which measures just 365 by 75 micrometers and uses capacitive coupling for power delivery—a pioneering approach for untethered operation at the microscale. This work, cited 5 times, demonstrates a novel method for controlling motion via scratch drive actuators and steering arms. Punyasai further advanced this field by modeling the micro-robot’s behavior using a finite state machine, enabling precise, autonomous control without physical tethering. In a separate line of research, he developed a method for detecting the shape of objects behind thin media using ultrasonic sensors combined with edge detection, achieving 3 citations. This system is designed for integration into surveillance ground vehicles, showcasing his ability to bridge fundamental robotics with practical applications. Though his citation counts are modest, Punyasai’s work represents early-stage innovation in micro-robotics and sensor systems, contributing foundational ideas to the development of autonomous, miniature machines.