If we calibrate with 3 or 4 points will there be an improvement in accuracy?

Typically, setting the zero position (the position which absolute measurements will use as a datum) after IncOder installation is usually good practice. However, calibrating with such a low number of points will only have any significant effect in very small ranges of <10degrees. Any improvement in accuracy over scales of >10degrees will require more points. This is because the error plot from an IncOder is not a smoothly varying error curve. It contains higher harmonic errors due to the way in which the IncOder’s sensors are arranged. For a calibration to have any significant effect over 360dgrees would typically require >50 calibration points. Provided the reference device is of very high quality (e.g. <10 arc-second accuracy), then the higher the number of points, the greater the effect of in-situ calibration.

Connect with Zettlex

Ask a question

Technical support

This website uses cookies to provide you with the best user experience and site functionality, and provides us with enhanced site analytics. By continuing to view this site without changing your web browser settings, you agree to our use of cookies. To learn more, please view our privacy policy.