Positioning Accuracy of Laser Galvo

The positioning accuracy of laser galvo can typically reach the micron level, with specific values ranging from 0.5μm to 10μm. This primarily depends on the manufacturing quality of the galvo, the precision of the control system, and the calibration technology. High-precision laser galvo can provide extremely high positioning accuracy for laser processing and are key to the precise application of laser technology.

Working Principle of the Laser Galvo

The laser galvo mainly consists of a reflective mirror and a drive mechanism. It changes the direction of the laser through high-speed deflection of the mirror. The drive mechanism usually employs electromagnetic or piezoelectric drives, which precisely control the deflection angle and speed of the reflective mirror. This structure allows the laser to dynamically focus on any working position within the field of view, achieving high-precision laser processing.

Positioning Accuracy of the Laser Galvo

The positioning accuracy of a laser galvo refers to its ability to precisely control the laser beam to point to the target position. This accuracy can typically reach the micron level and is a crucial parameter in laser processing. High-precision laser galvo not only improves processing quality but also reduces material waste and enhance overall production efficiency.

The positioning accuracy of a laser galvo is affected by various factors, including the manufacturing quality of the galvo, the precision of the control system, and the effectiveness of the calibration technology. To ensure high positioning accuracy, laser galvo systems are usually equipped with precise control strategies and sensor feedback systems, forming a closed-loop control to adjust the output of the drive mechanism in real-time so that the reflective mirror can accurately deflect to the target position.

Technical Means to Improve the Positioning Accuracy of Laser Galvo

To further improve the positioning accuracy of laser galvo, advanced machine vision technology can be used for calibration compensation. By using a motion control platform calibrated and compensated with image acquisition coordinates, it can automatically locate and collect multiple data points of the galvo marking. Then, using a multi-point galvo correction algorithm, a high-precision correction file is quickly generated, adjusting the angle of the galvo to correct inherent deviations. This technique can significantly enhance calibration accuracy and efficiency, meeting the demands of high-precision laser processing.

In summary, the positioning accuracy of laser galvo is a key indicator in laser processing technology. By understanding the working principles of laser galvo and the factors affecting positioning accuracy, we can adopt appropriate technical means to improve their positioning accuracy, providing strong support for modern high-precision laser processing.