There are several different tools available for the measurement and inspection of parts and products. The specific application often determines the best choice as each tool has its own benefits and drawbacks. Over the years, these tools have become more advanced to keep up with improved quality standards. In this column, I’ll briefly discuss various measurement tools and how they are used, focusing on the advantages of portable CMMs, and why they are the preferred tool in many instances.

Manufacturers are increasingly implementing quality methods such as Six Sigma and working toward compliance to quality standards such as ISO 9001 to continuously improve their products and processes. In addition to reducing or eliminating product defects, these measures strive to detect problems in the manufacturing process. This allows companies to prevent adding value to (trying to improve) already-defective works in progress. To be successful with this approach, manufacturers need to measure every step of their processes, including the various stages of product assembly that may never have been measured before.

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