Open AccessCalibration Method for the Bubble Angle of Inclination for the Spirit Levels Based on the Calibration Device
Author(s) -
Yi Yang,
Tao Wang,
Gang Zhu
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1982/1/012160
Subject(s) - calibration , bubble , inclination angle , physics , optics , mathematics , mechanics , geometry , quantum mechanics
A calibration method for the bubble angle of inclination for the spirit levels based on the calibration device was proposed. A special calibration device is used to calibrate the angle value of the bubble for the spirit levels. According to the proposed calibration method, the uncertainty evaluation model is established and the source of uncertainty is analyzed. Taking a spirit level with a nominal precision of 0.5mm/m as an example, the calibration of the bubble angle of inclination is realized by using the method proposed.