A resonant scanner is a device that uses the principle of resonance for beam deflection. Its working method involves controlling the coil with current to generate torque in a magnetic field, causing the installed mirror to perform resonant vibrations. The resonant frequency is proportional to the current, allowing for precise scanning control. Resonant scanners are widely used in laser scanning, medical imaging, and industrial inspection, capable of completing large-scale precise scans in a short time.
The design features of resonant scanners provide significant advantages in high-precision fields. Firstly, resonant scanners ensure stability and accuracy during high-speed scanning through precise electromagnetic design and high-rigidity structures. Secondly, the mirrors use lightweight materials, paired with precise electromagnetic systems to ensure high-frequency scanning operations. Additionally, it is crucial to focus on heat dissipation in the design to prevent system overheating, which can affect performance. The flatness and reflectivity of the mirrors are also critical, determining the quality and accuracy of the beam scanning.
The optimization methods for resonant scanner mainly include enhancing scanning speed, accuracy, and stability. Firstly, optimizing the electromagnetic drive system can improve the scanner's response speed and accuracy. Secondly, by improving the mirror design, reducing the mirror mass, and optimizing the fixation method, the scanning performance can be further enhanced. Moreover, an efficient control system and feedback mechanism can ensure real-time adjustment of the scanner's deflection angle, improving system stability and accuracy.
Resonant scanners are extensively used in high-precision fields. In laser processing and marking, resonant scanners are used to precisely control the laser beam's position and path, meeting micron-level processing requirements. In medical imaging, resonant scanners are applied in optical coherence tomography, providing doctors with high-resolution tissue images. In laser radar systems, resonant scanners generate high-precision 3D maps through high-speed scanning, widely used in autonomous driving and geographic mapping.
In summary, resonant scanners, with their high precision and speed characteristics, have been widely applied in multiple high-precision fields. Through continuous optimization of design and control systems, the performance of resonant scanners will continue to improve, playing a crucial role in more fields in the future.