基于激光跟踪仪的拖曳水槽车速动态校准

doi:10.3969/j.issn.1000-1158.2019.02.16

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Abstract Towing tank usually measures its speed using a tachometer wheel, of which there is a systematic bias due to static calibration without considering dynamic characteristics. A dynamic calibration method of towing speed is introduced based on laser tracker. We firstly calibrate and correct the laser tracker on a long-rail speed facility, and then use it on the towing tank. Results show tachometer wheel with only static calibration has a lower indication, and the slower speed has the lower indication. It is better to use different encoder coefficients at different speeds. The uncertainty estimation method are also discussed, including the influence of towing speed stability and dynamic performance of the tachometer wheel.

Key words： metrology speed towing tank laser tracker dynamic calibration encoder coefficient

Received: 04 December 2017 Published: 07 March 2019

PACS:

TB937

Corresponding Authors: Heming Hu E-mail: huhm@nim.ac.cn

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	Articles by authors
	ZHU Yun-long
	HU He-ming
	JIN Zhong-jia
	DOU Ying-wei
	XIE Dai-liang

Cite this article:

ZHU Yun-long,HU He-ming,JIN Zhong-jia, et al. Dynamic Calibration of Towing Tank Speed Based on Laser Tracker[J]. Acta Metrologica Sinica, 2019, 40(2): 272-277.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2019.02.16 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2019/V40/I2/272

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