NDLI: High Precision Robust Automatic Alignment Method for Rotating Shaft

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High Precision Robust Automatic Alignment Method for Rotating Shaft

Content Provider	Springer Nature Link
Author	Luo, Jun Wang, Zhiqian Shen, Chengwu Liu, Shaojin Wen, Zhuoman
Copyright Year	2016
Abstract	Rotating Shaft is widely used in various high precision instruments on scientific and industrial metrology. This paper proposes a high precision and robust method to automatically align a rotating shaft perpendicular to the horizontal plane. Firstly, an alignment model consisting of a dual-axis inclinometer and four motors is designed. Then the rotating shaft tilt angle between the practical and the ideal shaft is projected to two orthogonal planes, and generates a rotation angle in each plane. The two rotation angles are calculated by differential measurement method based on the inclinometer outputs, and then the relationship of shaft tilt angle against inclinometer outputs is obtained. According to these two rotation angles, the relative heights of the three supporting points of the platform attached to the rotating shaft are calculated. Employing an angle closed loop strategy; the rotating shaft tilt angle is aligned by three linear stepping motors. Experiment results show an alignment precision of 0.003º is achieved using an inclinometer with the resolution of 0.0005º and a linear stepping motor with the regulation precision of 0.89 μm. The proposed method is suitable for a wide variety of precision machines that require the use of rotating shaft.
Starting Page	189
Ending Page	196
Page Count	8
File Format	PDF
ISSN	09703950
Journal	MAPAN
Volume Number	31
Issue Number	3
e-ISSN	09749853
Language	English
Publisher	Springer India
Publisher Date	2016-06-30
Publisher Institution	Metrology Society of India
Publisher Place	New Delhi
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Precision measurement Inclinometer Differential measurement Alignment Angle closed loop Measurement Science and Instrumentation Theoretical, Mathematical and Computational Physics Mathematical Methods in Physics Numerical and Computational Physics
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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