The iNSIde View | North Star Imaging

The iNSIde View

North Star Imaging Blog

Measurement Traceability

Joe Schlecht, PhD

Senior Software Engineer


According to the International Vocabulary of Basic and General Terms in Metrology (VIM) [1], the traceability of a measurement result is demonstrated through a documented unbroken chain of calibrations, each contributing to the measurement uncertainty. This means that not only is it necessary to use a reference standard of length which has an unbroken chain of calibrations, but the uncertainty of the resulting measurements must include the uncertainty of all the links in the calibration chain.While the VIM definition is clear about what is needed for the traceability of a measurement result, it does not…


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