What is ‘static’ accuracy?

We tend to use the term ‘static’ accuracy so as to be clear that the measurement is made at low or no speed. This is so that any measurement errors due to rapid motion are not included. At very high speeds (e.g. >1000rpm), ‘dynamic’ errors from small but significant measurement lags are likely to be significant when compared to static accuracy values.

Why is there such a big difference between resolution and accuracy?
Resolution is defined as the smallest change in position that can be measured reliably. Standard IncOders offer a particularly high resolution of up to 22Bits or roughly 4M counts per rev. Because of IncOder’s high resolution output, it should be of little surprise that accuracy is significantly larger than resolution.

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