👉 A ratiometer is a device used to measure the angle of an object. It consists of two mirrors that are aligned with each other and positioned at different distances from the center of rotation. When an object is placed in front of one of these mirrors, it can be rotated around its axis to determine the angle between the object's direction and the horizontal plane. Ratiometers have been used for centuries to measure angles in various fields such as astronomy, navigation, surveying, and engineering. They
