What is the primary function of an encoder in a robotic system?

The primary function of an encoder in a robotic system is to measure the speed and rotation of the wheels. Encoders play a crucial role in providing feedback regarding the position and movement of the robot's components, particularly its wheels or motors. This feedback is essential for accurate control of the robot's movement, allowing it to maintain desired speeds, navigate effectively, and execute precise maneuvers.

By translating the physical rotation of the wheels into digital signals that represent distance traveled or rotational speed, the robot can make real-time adjustments to ensure it follows a predefined path or responds appropriately to its environment. This capability enhances the overall performance and reliability of the robotic system, as it contributes to better navigation and task execution.

Other functions, such as regulating battery usage, controlling direction, or providing visual input, do not align with the primary role of encoders. While a robot may utilize various sensors and systems for those purposes, encoders specifically focus on motion-related feedback essential for a robot’s mobility and performance.