Profile measurement using a gyro (9th report)

Alignment errors for the gyro rotation

Abstract

We consider that profile shape evaluation by detecting tangential angles of the profile is competent for precise evaluation of large objects. We proposed methods using a gyro for detecting the angles, and had already demonstrated that a rate offset, a random walk, and a scale factor, which are error factors caused by the gyro, can be eliminated by using a gyro being rotated around an axis perpendicular to its sensitive axis.Here, we evaluate alignment errors for the gyro rotation.