The accuracy of linear measurement is mainly determined by:
![](../../../assets/icons/enum.gif) | | The quality of the graduation |
![](../../../assets/icons/enum.gif) | | The quality of the scanning process |
![](../../../assets/icons/enum.gif) | | The quality of the signal processing electronics |
![](../../../assets/icons/enum.gif) | | The error from the scanning unit guideway to the scale |
A distinction is made between position error over relatively large paths of traverse—for example the entire measuring length—and that within one signal period.
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