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A goniometer is a device that either measures an angle or moves an object along a fixed point to a specific angular position. Goniometers have many uses and can be found in a number of industries. They measure range of motion, determine direction, and measure an object’s dimensions. Goniometers are relatively simple in design and have been used since 1780.
How a Goniometer Works
A goniometer consists of two limbs, usually made of plastic or wood, that are connected by a joint and are usually attached to a circular piece of the same material that is labeled with multiple angular measurements. As one limb is moved towards or away from the other limb, it is dragged along the circular piece and displays a measurement. Goniometers are made from a number of different materials and range dramatically in size, depending on the nature of the application.
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