Techniques
Coordinate Measuring Machines

A co-ordinate measuring machine (CMM) is a programmable, versatile instrument that is used to measure dimensional data for many types of manufactured component. CMMs have three or more measurement axes combined in series so that a unique combination of axes positions defines a single point in space. Measuring an object using a CMM is achieved by moving a measuring probe to a number of points on the object surface in sequence and measuring the position of the probe at each point via the machine scales. CMM are used extensively in manufacturing as QA/QC tools and have unique capabilites to measure high aspect ratio structures and steep sidewalls.

CEMMNT’s Zeiss F25 CMM uses miniature probes to extend the technology to measure critical dimensions, form, text of micro system components and tiny engineering parts.

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Coordinate Measuring Machines

Micro CMM image of ceramic verification artefact (Data Courtesy NPL)

Key Information
  • Measuring Volume: 100 x 100 x 100 mm
  • Scan speed 0.5 mm/s
  • Resolution: 7.5 nm
  • Measurement Uncertainty: 250 nm

 

 

 

 

                F25 CMM probe next to 8mm reference sphere

Common Applications
  • Automotive and aerospace components
  • Critical dimensions of engineering parts
  • Microfluidics
  • Implant structures
CEMMNT Benefits
  • Unique micro CMM Service (Zeiss F25)
  • Analysis of high aspect ratio structures, devices and components
  • NPL calibrated and validated
  • Rapid response service