Profile measurement using a gyro

Drift elimination of the gyro

Abstract

We had applied profile measurement using an inclinometer for evaluating the alignment of our linear particle accelerator for a distance up to 206 m and demonstrated that profile measurement based on angle detection is valid for precise evaluation of longer profile. Here, we consider a method using a gyro for detecting angles in place of the inclinometer for applying it in horizontal plane. We investigate for eliminating drift of the gyro, which is considered to be the major factor for errors.