High-speed two-dimensional scanning mechanism

Abstract

The invention provides a high-speed two-dimensional scanning mechanism. The high-speed two-dimensional scanning mechanism comprises a scanning mirror, a supporting frame, a first motor shaft, a first motor, a square framework, a second motor shaft, a second motor, a U-shaped frame, a third motor shaft and a third motor, wherein the scanning mirror is in rotary pair connection with the first motor by the supporting frame; the supporting frame is fixedly connected with the first motor shaft; the scanning mirror rotates along the normal direction of the scanning mirror under the driving of the first motor; the first motor is fixed on the square framework, and the square framework is in rotary pair connection with the U-shaped frame by the second motor shaft; the second motor shaft and the first motor shaft are vertical to each other and are on the same plane; the second motor is fixed on the U-shaped frame; the square framework and the scanning mirror rotate around the second motor shaft under the driving of the second motor; the U-shaped frame is in rotary pair connection with the third motor by the third motor shaft; the U-shaped frame is fixedly connected with the third motor shaft. According to the high-speed two-dimensional scanning mechanism, high-speed scanning of the scanning mechanism is easy to realize, so that real-time imaging of a terahertz imaging detection system and imaging detection of a moving target are facilitated.

Description

technical field [0001] The invention belongs to the technical field of terahertz imaging detection, relates to the problem of increasing scanning speed in detection imaging, and specifically refers to a high-speed two-dimensional scanning mechanism. Background technique [0002] In the field of terahertz imaging detection, due to the limitation of the field of view of the optical system itself and the key technology of the large area array terahertz detector has not yet broken through at this stage, it is necessary to use a mechanically driven two-dimensional scanning mechanism to expand the field of view of the system. In order to complete the rapid scanning imaging of the target. The traditional two-dimensional scanning mechanism uses the reciprocating swing of the azimuth axis and the pitch axis to realize two-dimensional scanning. The reciprocating swing requires frequent start-stop and acceleration and deceleration of the motor. It is difficult to achieve high-speed sca...

AI Technical Summary

Problems solved by technology

The traditional two-dimensional scanning mechanism uses the reciprocating swing of the azimuth axis and the pitch axis to realize two-dimensional scanning. The reciprocating swing requires frequent start-stop and acceleration and deceleration of the motor. It is difficult to achieve high-speed scanning, and the imaging time is long, which is difficult to achieve. Imaging detection of moving targets limits its application in many occasions

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