In physics, precision is the closeness of the measurements to each other.

In factory automation, precision is related to reproducibility and repeatability.

The degree to which repeated measurements under unchanged conditions show the same results. Industrial components should always aim to perform with accuracy and precision for optimal automation results. To read more about accuracy, please visit the glossary page for accuracy.

The following diagrams illustrate what good/bad accuracy and good/bad precision each means.

A representation of good accuracy and good precision, and bad accuracy with good precision.

accuracy vs precision: a representation of bad accuracy and bad precision, and good accuracy with bad precision.

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