Encoders in Robotics Encoders in Robotics: Enhancing Joint-Level Feedback Today’s robotics perform tasks that humans cannot do or cannot maintain for long periods—often in hazardous environments. Each joint of the robot is essentially a closed-loop motion system. Within each joint, you’ll typically find one to three position and speed feedback sensors, usually rotary encoders. In more advanced robots such as collaborative systems, humanoids, and surgical robots, there is often a secondary encoder at the load side, after the gear, for enhanced position accuracy. High-Bandwidth Robotics Encoders for Smooth Motion A robot’s ability to respond to its environment depends heavily on its sensory system. Netzer encoders provide continuous, full-circle position feedback with high accuracy and bandwidth, enabling fast and smooth responses to motion changes along the robot arm. Their advanced Electric Encoder™ technology also supports tolerant mechanical installation, making integration into complex assemblies easier. While motion capability and load are the two main important issues in such robotics, the joints must be as short as possible and therefore as lightweight as possible. Netzer Encoders enable high integration levels close to the motor magnets and on the load side, thus reducing the number of components needed in the joint and, therefore, less size, complexity, and overall cost. Why Encoders in Robotics Must Withstand Harsh Environments Netzer encoders are engineered for robotics applications that demand exceptional performance under extreme conditions. Originally developed for aerospace and space missions, their EMI and EMC durability offer a significant advantage for high-integration systems—particularly in surgical robotics, where signal stability and resistance to electrical noise are critical for precision and safety. Do you want to know which absolute rotary encoder best suits your application? Contact our engineers for further information.
