Chinese Researchers Unveil Humanoid Hand with High Precision Positioning Capabilities

Chinese scientists have introduced a groundbreaking humanoid hand that impressively determines its spatial position with high accuracy while executing complex movements. This innovative development is the result of collaborative efforts from researchers at Zhejiang University, Hangzhou University of Electronics, and Lishui University.

The core technology behind this humanoid hand is the use of soft omnidirectional bending sensors. These sensors enable the robotic fingers to perceive not only bending but also lateral movements in real-time. This capability is critically important for performing delicate manipulations that require high precision and agility.

The design of the manipulator is remarkable in its complexity, featuring 18 active degrees of freedom and consisting of five combined (rigid-flexible) fingers. Each finger is equipped with a soft optical sensor made from segmented polymethylmethacrylate (PMMA) fibers, a tri-color LED, and a detector. The system operates on the principle of tracking the attenuation of red, green, and blue light during sensor deformation, allowing for high accuracy in movement recognition.

Thanks to the special arrangement of the fibers, the device can clearly differentiate between types of movements, avoiding any mixing. This is confirmed by the high stability of results obtained over hundreds of test cycles. A study published in the journal Microsystems and Nanoengineering demonstrates the robotic hand's ability to perform tasks requiring exceptional dexterity, such as using scissors, operating a computer mouse, and even playing the piano.

Unlike previous systems, the new technology provides fine tactile perception through feedback that accounts for pressure and deformation. This opens new possibilities for humanoid robotics and has significant potential in the field of prosthetics. The use of such sensors will enable the creation of artificial limbs that provide a natural sense of touch, greatly enhancing control and comfort for users.

Furthermore, this technology could find applications in medicine, particularly for monitoring patients' movements during rehabilitation. This could significantly ease the recovery process and improve treatment effectiveness.

Currently, the research team continues to work on enhancing the durability of the system and refining data processing algorithms. This will allow for the integration of the new technology into intelligent machines, opening new horizons for the development of robotics and its application in various areas of life.