High-precision inclinometer calibration method

• Main Authors: LIU ZHAOQUAN, TAO ZHENJIE, SUN YANGYANG, JI HAOHUA, CHENG YIPIN, SUO XUHONG, XU LIANG, ZHANG XIUZHEN, SONG JIANGWEI, ZHANG CHAO
• Format: Patent
• Language: Chinese; English
• Published: 13.06.2017
• Subjects: GYROSCOPIC INSTRUMENTS; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; SURVEYING; TESTING

The invention relates to the field of sinking pipe calibration measurement, in particular to a high-precision inclinometer calibration method, comprising the steps of charging a segment, to be mounted, of a sinking pipe to a shallow dock area, mounting a hydrostatic level and a first inclinometer in the segment to be mounted, and using the hydrostatic level and the first inclinometer to acquire initial inclinations of the segment to be mounted; charging the segment to be mounted to a deep dock area, mounting a second inclinometer, and using the initial inclination of the segment measured by the hydrostatic level to calibrate the second inclinometer; after the second inclinometer is calibrated, comparing with the initial inclination acquired by the first inclinometer; after qualification is verified, mounting the segment on a bed. The invention is intended to provide the high-precision inclinometer calibration method having low external environmental impact, good measurement synchronism and small calibration e