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6 results on '"LI Yue-bo"'

5. A novel free-space method of mearsuring of electromagnetic parameters based on the resonance property of reflectivity

Author

Huang Liu-Hong, Xue Fan-Xi, Li Yue-Bo, and Ding Shi-Jing

Subjects
Optics, Materials science, business.industry, Property (programming), General Physics and Astronomy, Resonance, Free space, business, Reflectivity
Abstract

The free-space method is a analysis method applicable for measuring electromagnetic parameters of materials, owing to its non-contact and non-destructibility. Base on the resonance property of reflectivity under sweep frequency mode, a novel free-space method is presented. For the study of constructive interference or destructive interference, the method is used to measure the real component of complex dielectric constant through the thickness of material and the interference frequency. The method can also measure the imaginary component of complex dielectric content by the positions of peaks and valleys of waveform or/and their correlation. The study also demonstrates the higher precision obtained by using the valley-to-valley ratio than by using the standing waveform ratio (peak-to-valley ratio).

Published
2012

6. Influence of Blast Shock on Shielding Effectiveness of Electromagnetic Shielded Enclosure with Integral Shock Isolation.

Author

HUANG Liu-hong, HE Yong-sheng, LI Yue-bo, LIU Feng, and HE Wei

Subjects
*BLAST effect, *ELECTROMAGNETIC shielding, *SHOCK waves, *ACOUSTIC vibrations, *ORDNANCE research
Abstract

Shielding effectiveness of electromagnetic shielded enclosure would be decreased by blast shocks. An electromagnetic shielded enclosure with the shock isolator with own patented technology is designed and constructed. The field blasting and shielding performance tests are conducted to study the effect of blast shock on the the shielding effectiveness of electromagnetic shielded enclosure with integral shock isolation. The results show that the vibration acceleration of electromagnetic shielded enclosure with integral shock isolation is only 18 m/s² although the input vibration acceleration peak is up to 115 m/s² under the blast shocks of 160 kg cumulative charge. This means that the integral shock isolation effectively reduces the impact of blast shock on electromagnetic shielded enclosure. The electromagnetic shielded enclosure meets the requirement of Grade I . [ABSTRACT FROM AUTHOR]

Published
2014
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