Project Description

Angle encoders are accurate instruments increasingly used in industry, research activities and metrology, but the calibration of these instruments is a critical issue.

Hence, a pilot study on the calibration of angle encoders is necessary. The circulating standard will be an incremental angle encoder manufactured by Heidenhain, model RON 786C.

Many ...

Project Description

The key comparison on calibration of angle standards will be based on two 12-sided optical polygons. A first one manufactured by Matrix and a second one manufactured by Möller Wedel.

Due to the high number of participants, two groups of NMIs will be created: A first group will measure only the polygon manufactured by Matrix, while a second group will...