Three-dimensional holographic-imaging servo rotating scanning system

Abstract

The invention, which belongs to the technical field of mechanical driving and servo control, especially relates to a three-dimensional holographic-imaging servo rotating scanning system. The system comprises a servo motor having a first angle transducer, a second angle transducer, a control assembly, a servo driver, and a rotation frame. The system is a fully closed-loop servo control system. The second angle transducer detects an actual rotation angle of the rotation frame and feeds back a frame feedback signal to the control assembly; an instruction signal and the frame feedback signal are compared in the control assembly to generate a following error; the first angle transducer detects an output rotation angle of the servo motor and feeds back a motor feedback signal to the servo driver; and the servo driver controls the servo motor to make rotation according the following error and the motor feedback signal. The provided system has advantages of simple structure, low cost, easy assembling, high rotation precision, and easy control.

Description

technical field [0001] The invention belongs to the technical field of mechanical transmission and servo control, and in particular relates to a three-dimensional holographic imaging servo rotation scanning system. Background technique [0002] The 3D holographic imaging system is widely used in the field of security inspection. Compared with the flat-panel imaging system, because it can observe and image from multiple perspectives, it can cover and detect foreign objects without dead angle. In order to achieve accurate three-dimensional imaging, it is necessary to adopt the form of cylindrical scanning to cover the subject from multiple angles. Therefore, the servo rotation scanning system for three-dimensional holographic imaging has put forward higher requirements. During the operation, the rotating frame of the transceiver antenna module needs to be at a certain angle. Rotate within a certain range and ensure that the overall deformation or vibration of the rotating fram...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a servo rotation scanning system for three-dimensional holographic imaging, which aims to solve the technical problem of low stability when scanning starts and stops due to the high operating speed of the transceiver antenna module in the existing three-dimensional holographic imaging system, and at the same time Meet the real-time monitoring and detection of the servo rotary scanning system, as well as the precise positioning of the start and end positions of each scan during multiple reciprocating scans

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