coordinate measuring machine (CMM)

A coordinate measuring machine (CMM) is a precise measuring instrument used to determine the spatial location and size of objects. It is commonly used in industrial manufacturing to ensure that products are produced within specified tolerances.

The CMM consists of a table or frame on which the object to be measured is placed. An arm with a measuring probe that can move in all three directions is positioned over the object. The measuring probe may be equipped with a stylus that touches the object to perform measurements.

The CMM can be equipped with different types of measuring sensors, including tactile and optical sensors. Tactile sensors touch the object to perform measurements, while optical sensors do not touch the object and perform measurements using light beams.

The CMM can perform measurements in different coordinate systems, including Cartesian, cylindrical, and spherical coordinates. The measurement data is typically stored in a computer and can be used for analysis and quality verification of the manufactured products.

Coordinate measuring machines are used in many industries, including automotive, aerospace, mechanical engineering, medical technology, and many others. They are essential to ensure that products meet specified requirements and satisfy customers.