Scanning galvanometer control system for area array infrared wide-area imaging

Abstract

The invention discloses a scanning galvanometer control system for area array infrared wide-area imaging. The scanning galvanometer control system comprises an interface module, a control module, a drive module and an interface unit. All the modules are integrated in an area array thermal imager. The interface module obtains an instruction of the control end of a wide-area imaging system through two paths of data lines and converts the instruction into parallel data to be sent to the control module. The control module analyzes the instruction and can further independently solve encoder and gyroscope information to obtain angle compensation information. The drive module is connected with the control module to drive a single-shaft galvanometer or a double-shaft galvanometer to conduct scanning motion. According to the scanning galvanometer control system for area array infrared wide-area imaging, the imaging blurring problem caused by motion of the area array thermal imager in area arrayinfrared wide-area imaging systems for weekly scanning, reciprocating scanning or two-dimensional scanning and the like is solved, the motion in integral imaging of an area array detector can be compensated by adopting the technical scheme, thus clear imaging is achieved when the thermal imager makes motion, and then clear wide-area images are spliced in the imaging system.

Description

technical field [0001] The invention belongs to the technical field of area array infrared wide-area imaging, and in particular relates to a scanning vibrating mirror control system for area array infrared wide-area imaging. Background technique [0002] In the area array infrared wide-area imaging system, the imaging system controls the area array thermal imager through the servo platform to perform reciprocating scanning, weekly scanning or two-dimensional scanning to obtain single-scene images of the scenery in a certain area, and then obtains them through image splicing. Wide-field infrared images of scenery. [0003] The area array detector can stare at the image, but the area array detector needs a long integration time in the imaging process, among which, the long-wave area array detector needs hundreds of microseconds, while the medium-wave area array detector takes milliseconds. [0004] The high-speed rotation of the servo platform can easily lead to smearing and ...

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Problems solved by technology

[0006] The purpose of the present invention is to propose a scanning galvanometer control system for area array infrared wide-area imaging according to the deficiencies of the prior art, which solves the problems in area array infrared wide-area imaging systems such as circular scanning, reciprocating scanning, or two-dimensional scanning. Issues such as imaging blur and jitter caused by the movement of the area array thermal imager

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