Research on the measuring method for position parameters of large rocket sled by using the fusion of multiple measurement systems

Jiansu Qu; Ziyue Zhao; Yang Li; Zhiting Jia; Siyuan Gong

doi:10.1117/12.2616418

8 July 2022 Research on the measuring method for position parameters of large rocket sled by using the fusion of multiple measurement systems

Jiansu Qu, Ziyue Zhao, Yang Li, Zhiting Jia, Siyuan Gong

Author Affiliations +

Proceedings Volume 12282, 2021 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems; 1228217 (2022) https://doi.org/10.1117/12.2616418
Event: 2021 International Conference on Optical Instruments and Technology, 2022, Online Only

Abstract

The rocket sled is a large-scale, high-precision ground dynamic simulation test equipment that uses a powerful rocket booster to push the test object at high speed on a special slide which is similar to a railroad track. It is mainly used for dynamic performance analysis of such as speed and acceleration. There are several targets along the sled and the ultra-long position parameters of the targets are very important for the dynamic test. Thus it is a worldwide problem to get the position parameters precisely. This paper states a measuring method for position parameters of large rocket sled by using the fusion of multiple measurement systems. At present, the methods of obtaining dynamic parameters mainly include high-speed photography and photoelectric detection position marking method. We use a laser tracker and a total station to set a collaborative network which can integrate the advantages of the both systems. The mathematic model is established by using the global coordinate control field as the constraint equations. In order to solve the equations we use the iterative optimization algorithm, and the weights for each value are given. The experiment is designed under field environment and The results show that the measurement error is kept at 3mm within the range of 3km by comparing with the standard length of the reference ruler. This experiment has verified the high-precision and high-efficiency of the ultra-long position measuring method.

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Jiansu Qu, Ziyue Zhao, Yang Li, Zhiting Jia, and Siyuan Gong "Research on the measuring method for position parameters of large rocket sled by using the fusion of multiple measurement systems", Proc. SPIE 12282, 2021 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, 1228217 (8 July 2022); https://doi.org/10.1117/12.2616418

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KEYWORDS

Rockets

Distance measurement

Laser marking

Detection and tracking algorithms

Optimization (mathematics)

Algorithm development

Mathematical modeling

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