Angular displacement sensor

A angular displacement sensor is a device used to measure the angle of rotation of an object relative to a reference position, providing information about its orientation or angular motion. These sensors convert angular motion into an electrical signal, which can be used in control systems, robotics, automobiles, electronics and other industrial applications.

Types of angular displacement sensors:

1. Rotary Potentiometers: They are resistive sensors where the rotation of an axis changes the position of a sliding contact (wiper) on a resistive track, varying the resistance.

2. Encoders: They are devices that convert angular movement into digital or analog signals. They are divided into two main types: Absolute encoders and incremental encoders.

3. Magnetic sensors (Hall effect): They use the Hall effect to detect changes in the magnetic field caused by the rotation of a magnet attached to the shaft.

4. Optical sensors: They use light (usually LED or laser) and a disk with optical patterns to measure angular displacement.

5. Inductive sensors: They detect changes in inductance caused by the movement of a conductive or magnetic element.