Linear potentiometer sensor
A Linear potentiometer sensor is a precision measurement device that converts linear mechanical motion into proportional electrical signals. This versatile instrument operates on the principle of variable resistance, utilizing a sliding contact moving along a resistive element. The sensor consists of a fixed resistive track and a movable wiper that maintains constant contact with this track. As the wiper moves along the track, it creates a voltage division that's directly proportional to its position, enabling accurate position measurement. The sensor's design allows for both absolute position sensing and continuous monitoring of linear movement. Modern linear potentiometers feature advanced materials and construction techniques, offering excellent linearity, resolution, and repeatability. These sensors commonly operate within specified stroke lengths ranging from a few millimeters to several meters, making them suitable for various industrial applications. They can function effectively in diverse environmental conditions, including high temperatures and exposure to various industrial fluids. The output signal from a linear potentiometer is typically analog, though many modern variants include integrated electronics for digital output conversion. These sensors find extensive use in manufacturing automation, robotics, automotive systems, aerospace applications, and precision measurement equipment. Their reliability, cost-effectiveness, and straightforward operation make them a popular choice for position feedback in motion control systems.