A detonation wave three-dimensional cell structure reconstruction system based on tomography

By using a tomographic scanning system and high-frequency millimeter-wave/terahertz wave and nonlinear electromagnetic inverse scattering algorithm, non-destructive and quantitative reconstruction of the three-dimensional lattice structure of detonation waves was achieved. This solved the problems of contact interference, optical opacity and motion blur in traditional methods, and improved the reconstruction quality and resolution.

CN122193299APending Publication Date: 2026-06-12UNIV OF SCI & TECH BEIJING
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
UNIV OF SCI & TECH BEIJING
Filing Date
2026-03-13
Publication Date
2026-06-12

AI Technical Summary

⚠Technical Problem

Existing technologies for detonation wave diagnosis suffer from problems such as easily damaged contact probes that interfere with the flow field, opaque optical imaging due to smoke, and motion blur caused by slow conventional CT scanning speed, making it difficult to accurately reconstruct the three-dimensional lattice structure of detonation waves.

⚗Method used

A tomographic scanning-based system is employed, utilizing millimeter-wave/terahertz waves in the 140GHz to 300GHz frequency band as the detection source. Through a fully transparent enhanced non-metallic pipe, a ring antenna array assembly, an electronic switch matrix, and a high-speed data acquisition unit, combined with a nonlinear electromagnetic backscattering algorithm, non-contact three-dimensional lattice structure reconstruction of detonation waves is achieved.

🎯Benefits of technology

It achieves non-destructive and quantitative three-dimensional lattice structure reconstruction of detonation waves in high-concentration smoke and dust environments, reduces hardware complexity and improves imaging resolution, and overcomes the interference and blurring problems of traditional methods.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122193299A_ABST
    Figure CN122193299A_ABST
Patent Text Reader

Abstract

The application discloses a detonation wave three-dimensional cell structure reconstruction system based on tomography, which comprises a wideband radio frequency excitation unit, a full-transmission enhanced non-metal pipeline, a ring antenna array assembly, an electronic switch matrix, a high-speed data acquisition unit and a signal processing and imaging unit. The switch matrix is integrated as a multi-channel bidirectional radio frequency routing hub, and a small amount of microwave radio frequency channels are used to perform high-speed time division multiplexing scanning on the ring antenna array. In the 140GHz-300GHz frequency band, in cooperation with the full-transmission enhanced non-metal pipeline, full-vector scattering signals of the detonation wave after penetrating the flow field can be acquired within a microsecond-level scanning period. The signal processing and imaging unit combines a nonlinear electromagnetic inverse scattering model and a phase focusing correction technology based on a velocity vector to reconstruct the complex permittivity distribution of a tomographic section, decouples the output electron density field and the gas kinetic density field, and maps and fuses into a three-dimensional voxel model to extract the three-wave point spatial topology trajectory. The application can reconstruct the detonation wave three-dimensional cell structure.
Need to check novelty before this filing date? Find Prior Art