Characteristics evaluation of galvanoscanner
Galvanoscanner is equipped with a motor to adjust the scanning angle of the mirror that reflects the laser beam and a high-precision position sensor. It is used in a wide range of applications in combination with laser beam, such as laser markers, microscopes, and LiDAR, and is required to scan mirrors over a wide range at high speed and with high precision. When developing products, it is necessary to perform highly accurate simulations to achieve high speeds and optimize models and control parameters. In addition, in order for customers to use products with peace of mind, it is required to confirm that the product's performance is guaranteed before shipping. Therefore, it was a challenge to easily measure and understand the control characteristics of the galvanoscanner and the mirror's resonant frequency with high precision.
* The above information provided by Citizen Chiba Precision
Example 1: Measurement of galvano mirror resonance
When the mirror operates near the resonance frequency, the mirror may vibrate greatly, and when used for image processing, the image may be distorted. Additionally, if the resonant frequency is lower than the design value, the mirror will not operate with high response as it cannot be controlled with high gain. For these reasons, it is very important to understand the resonant frequency of galvano mirror.
Product shipping inspection
- Inspect whether the characteristics of produced galvano mirrors meet the specifications.
Research and development
- Evaluate whether the characteristics match the design
Example 2: Measurement of control characteristics (servo analysis)
Evaluate the control characteristics of the entire scanner, including mirror, motor, and control circuit.
Research and development
- Simulate control characteristics during product development and utilize them in design.
- Measure the performance of the prototype for simulation calculations.
- Achieve higher performance (higher response) of products to improve simulation accuracy.
Example 3: Characteristic evaluation excluding control circuit
Evaluating the control characteristics of Galvanoscanner, optimizing high-precision control and increasing scanner speed
Research and development
- Obtain the characteristics necessary to create a model of each product using the actual product.
Citizen Chiba Precision Co., Ltd.
Evaluating the control characteristics of Galvanoscanner, optimizing high-precision control and increasing scanner speed
Revised: 2024/03/05
