A displacement sensor is a device used to measure the distance an object moves from a specific position. It can detect changes in position, which is crucial in various applications, such as robotics, manufacturing, and automotive systems. These sensors can be based on different technologies, including capacitive, inductive, and optical methods, each suited for specific environments and requirements. Displacement sensors are essential for ensuring precision in automated processes. For instance, in industrial automation, they help monitor the position of machinery components, ensuring they operate within designated parameters. This capability enhances safety and efficiency in production lines and other mechanical systems.