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This article expounds the design and control of a new variable stiffness series elastic actuator (VSSEA). It is established by employing a modular mechanical design approach that allows us to effectively optimize the stiffness modulation characteristics and power density of the actuator. The proposed VSSEA possesses the following features: no limitation in the work range of output link; a wide range of stiffness modulation (∼20 N·m/rad to ∼1 KN·m/rad); low-energy-cost stiffness modulation at equilibrium and nonequilibrium positions; compact design and high torque density (∼36 N·m/kg);...

Researchers at the University of Liverpool are using PI actuators to precisely hold and manipulate single molecules in their research into molecular electronics. Click to read more...

The development of stimuli-responsive polymers has brought about a wealth of material-related opportunities for next-generation small-scale, wirelessly controlled soft-bodied robots. For some time ...

CHICAGO, Dec. 20, 2022 /PRNewswire/ -- The Space Sensors and Actuators Market is projected to grow from USD 2.7 Billion in 2022 to USD 4.9 Billion by 2027, at a CAGR of 12.7% during the forecast

With the help of the high-brilliance X-ray source PETRA III, a German-Swedish research group has developed a new cellulose polymer material that can be specifically animated to move by moisture, m ...