Self-adaptive terahertz three-dimensional tomography device and method

Abstract

The invention provides a self-adaptive terahertz three-dimensional tomography device and method. The device comprises an upper computer, a terahertz three-dimensional tomography host, a terahertz lens, a mechanical arm controller, a mechanical arm and a binocular vision system. The terahertz three-dimensional tomography host is respectively connected with the upper computer and the terahertz lens; the terahertz lens is arranged at the tail end of the mechanical arm and can synchronously move along with the tail end of the mechanical arm; the binocular vision system is connected with the upper computer, the binocular vision system is used for transmitting the 3D model of the measured object to the upper computer, and the upper computer generates path planning data of the motion trail of the mechanical arm; the mechanical arm controller is connected with the upper computer and the mechanical arm. The mechanical arm controller can obtain rotary encoder signals representing angle information of all shaft motors of the mechanical arm and upload the rotary encoder signals to the upper computer. The mechanical arm and the terahertz three-dimensional tomography system are combined, so that the imaging problem of a curved surface object can be effectively solved, and the working dimension is improved from two dimensions to three dimensions.

Description

technical field [0001] The invention belongs to the technical field of terahertz three-dimensional tomography, in particular to an adaptive terahertz three-dimensional tomography device and method. Background technique [0002] As a light source, terahertz radiation can be used as a signal source for object imaging like other radiations (such as visible light, rays, mid-near-far-infrared and ultrasonic waves, etc.). Terahertz time-domain spectral imaging technology is one of the important information detection technologies in the field. The terahertz time-domain spectral image not only contains the geometric information of the target, but also has complete information such as the intensity, phase and time of the target's impulse response, which provides the physical and chemical composition of the target at each pixel point. It has great application potential in many fields such as safety inspection, environmental monitoring, food production quality monitoring and so on. ...

AI Technical Summary

Problems solved by technology

[0003] At present, the combination of terahertz three-dimensional tomography technology based on point-by-point scanning and two-dimensional scanning platform has a good application effect only when imaging flat objects. When imaging objects with curved surfaces, every detection cannot be guaranteed. The terahertz wave emitted by the point terahertz lens is consistent with the normal direction of the point and the detection point is always at the focal point of the terahertz lens, thus ensuring the accuracy of detection

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