Analysis and Calculation of the Effective Length of a Reader Solenoid Coil Coupled to Rapidly Moving Microtag

Geng, Shuqin; Xiangkai, Gao; Peng, Xiaohong; Bai, Yuxin

doi:10.1109/lawp.2018.2821661

Cited by 7 publications

(2 citation statements)

References 6 publications

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Section: Introductionmentioning

confidence: 99%

“…Among the topics studied in [2] and [3], a detector system with RFID communication at 125 ± 10 kHz was built to acquire data from downhole microtag through the solenoid coil of the detector system. However, both [2] and [3] lacked modelling and analysis of the system in a resonant state. In [4], two basic structures are proposed and expressions for the conversion efficiency are derived for resonant wireless power transmission.…”

Section: Introductionmentioning

confidence: 99%

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Research on capacitive compensation based on underground pipeline detection system

Geng

Zhu

et al. 2022

J. Phys.: Conf. Ser.

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This paper investigates the problem of wireless power transmission in underground pipeline detection systems. In response to the fact that during the study of the underground pipeline detection system, the coil inductance value changes due to environmental and anthropogenic factors, making the system detuned and unable to effectively acquire the underground microtag ID signal. Therefore, we raised a novel capacity compensation method to solve the problem mentioned above. Firstly, the hardware structure of the system is modelled, derived and analysed with the system in a resonant state. The topology applied to the system is then subjected to capacitive compensation operations to obtain the power transfer efficiency of the system in the resonant state with the best topology model. Finally, it is demonstrated through functional tests that the capacitive compensation of the optimal topology model achieves a good power transfer performance and acquires an effective ID signal.

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