Pengbo Liu received a B.Eng. degree in mechanical engineering from the Ocean University of China, Qingdao, China, in 2012, and a Ph.D. degree in mechatronic engineering from Shandong University, Jinan, China, in 2018. Since 2018, he has been with the School of Mechanical and Automotive Engineering, Qilu University of Technology, Jinan, China. His current research interests include compliant mechanisms, micro/nano manipulations, and nanoscale positioning systems for advanced manufacturing applications, hybrid systems, and the control of high-precision mechatronics.