多边法坐标测量系统中解算方式对测量精度的影响研究

doi:10.3969/j.issn.1000-1158.2021.05.03

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Abstract In order to study the influence of the calculation method on the accuracy of the multilateral coordinate measurement system,the multilateral coordinate measurement model was established,and the differences between the two methods of coordinate calculation were analyzed.The simulation experiment of the two methods was carried out for the typical multilateral coordinate measurement system of four stations.The simulation results show that the pre-accurate calibration of system parameters can effectively improve the measurement accuracy,which is improved by 69.5%,64.6% and 46.3% respectively.An experiment was conducted to verify the accuracy of coordinate measurement.The experimental results show that,compared with the synchronous calculation method,the average measurement error of the three groups of experiments after the pre-accurate calibration of system parameters decrease from 203.0μm to 23.8μm,and the average correlation coefficient between the measurement error and the measurement distance of the three groups of experiments is reduced from 99.8% to 37.8%,which verify the simulation results.

Key words： metrology large scale measurement;multilateral coordinate;method of calculation;measurement accuracy

Received: 08 June 2020 Published: 24 May 2021

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TB92

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	Articles by authors
	SUN Wei
	MIAO Dong-jing
	LI Jian-shuang
	YAO Yan
	ZHONG Wen
	HE Ming-zhao
	LI Lian-fu

Cite this article:

SUN Wei,MIAO Dong-jing,LI Jian-shuang, et al. Study on the Influence of the Calculation Method on the Accuracy of the Multilateral Coordinate Measurement System[J]. Acta Metrologica Sinica, 2021, 42(5): 558-563.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2021.05.03 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2021/V42/I5/558

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