A Spatial 4-DOF Laser Collimation Measurement System
Source abstract
Abstract
A compact and miniaturized laser collimation system was proposed to measure the four-degrees-of-freedom of an optical payload in high-altitude space. Compared with other systems, this system has a simple structure and low cost, high measurement accuracy, and a large measurement range. The optical structure of the system was designed, the measurement principle of the four-degree-of-freedom was described in detail, the interference between the distance measurement and the angle measurement in the optical path was analyzed, and the installation error was analyzed. The error was minimized under different temperature conditions to improve the robustness of the system. An engineering prototype was built based on the system design scheme and an experiment was conducted to measure a target with a measured distance of 500 mm. The current indicators reached the requirements for the ground testing of optical payloads. The application of the system can be used to measure six degrees of freedom simultaneously by installing two systems in different coordinate systems. The system can also be used in industry; for example, by measuring the machine tool error in real time and compensating for it, the system can improve the positioning and motion accuracy. It can also be used for feedback control of the robot’s motion by measuring and controlling it.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Adaptive optics and wavefront sensing · Astronomical Observations and Instrumentation · Calibration and Measurement Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Mechanical Engineering, Shanghai Institute of Technology, Shanghai 201418, China
Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
School of Cyber Science and Engineering, Wuhan University, Wuhan 430072, China
References (25)
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