FEATURES 2 Drive-Based Platforms Provide Flexible Concepts for Machine Safety 20 Built-In Vibration Control to Soundproof Spaces 21 Liquid Metal Sensors and AI Help Prosthetic Hands " Feel " 22 Independent Collaborative Robots 6 The Fundamentals of Applying Electrohydraulic Valves APPLICATIONS 10 OPC UA Standard for Industrial Automation 12 Improving Overhead Equipment Devices for a New Era of Railway Transportation 15 Component Helps Perseverance Sample Mars TECH BRIEFS 17 Hydrodynamic Effect Helps Motorized Objects Navigate Inclines 17 Magnets Improve Control of Prosthetic Limbs 18 Faster Path Planning for Rubble-Roving Robots 20 Liquid Metal Turns Motion into Electricity, Even Underwater DEPARTMENTS 23 New Products ON THE COVER The latest generation of safety drives and controls offers flexible and effective new concepts in automated manufacturing. Machine safety control platforms - such as the one pictured here from Bosch Rexroth - provide vital protection of people and machines. Learn more in the feature on page 2. (Image courtesy of Bosch Rexroth) Free Info at http://info.hotims.com/79418-702 Cov ToChttp://info.hotims.com/79418-702 http://info.hotims.com/79418-936