Metrology software

Parts manufacturers must meet demanding quality standards. Therefore, part inspection throughout the manufacturing process is required. This critical step is generally done in a QC or engineering department using various inspection methods. One method utilizes video camera-based measurements in conjunction with metrology software and offers unique benefits.

The greatest benefit of a video inspection system is its ability to capture large numbers of data points with a single mouse click, which generates accurate and repeatable results. When many data points are gathered, algorithms can use those points to accurately determine the size, location and form of the part. In addition, the software within the system often can filter out data that may have been taken in error. This noncontact inspection method is especially beneficial when the part is too small or fragile to be measured with standard touch probes.

Courtesy of All images: Heidenhain

Video inspection of a circuit board.

This screen shot shows video inspection using Heidenhain’s IK 5000 QUADRA-CHEK metrology software.

Advancements in digital cameras over the past 5 to 10 years, in combination with proven metrology software and accurate position feedback, can help companies produce higher-quality parts because inspectors can quickly and accurately verify quality throughout the manufacturing process. Applications that could benefit from this type of system include stamped and milled metal products, sprockets, gears, hubs, circuit boards and connectors.

Metrology software tied to a video system guides the inspection process and gives the operator tools to simplify on-screen measurements taken directly from the camera. The video “tools” use pixel resolution to find the edges of parts by detecting slight changes to the contrast levels seen in the image. These tools can be set up to accommodate various part sizes and shapes, and adjusted for the number of locations used for measurement.