Using an optical scanning galvanometer to suppress image shift in a circumferential scanning detection system.

Area of Science:

• Optics
• Mechanical Engineering
• Control Systems

Background:

• Circumferential scanning detection systems are prone to image shift, affecting image quality.
• High-speed image shift compensation is crucial for clear imaging in these systems.

Purpose of the Study:

• To design and validate a new scanning galvanometer for high-speed image shift compensation.
• To suppress image shift in circumferential scanning detection systems.

Main Methods:

• Developed a novel scanning galvanometer and derived its mathematical transfer function model.
• Designed a time-sequence logic for circumferential scanning image shift compensation control.
• Established an image shift compensation test system with key components like a target and azimuthal rotary table.

Main Results:

• The image shift compensation system achieved a sweep frequency of 80 Hz with a 5 ms exposure time.
• Clear detector images were obtained, demonstrating effective suppression of circumferential scanning image shift.
• The control logic and method successfully met high-frequency compensation demands.

Conclusions:

• The novel scanning galvanometer design and control strategy are effective for high-frequency image shift compensation.
• The developed system meets the requirements for circumferential scanning detection systems.
• This work provides valuable insights for image shift compensation in similar imaging applications.