基于激光偏振的高精度滚动测量方法

IF 1.9 4区 工程技术 Q2 Engineering
Fei Long, Fajia Zheng, Peizhi Jia, Xing Xia, Qibo Feng
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引用次数: 0

摘要

直线导轨是计算机数控机床和三坐标测量机等精密设备的重要组成部分。提高其精度的关键在于进行高精度测量,并有效补偿运动过程中出现的六自由度误差。然而,在激光测量中,滚动是实现高精度测量的一个困难参数,目前尚未得到有效解决。本研究提出了一种基于激光偏振态的高精度、高灵敏度滚动测量方法。该方法采用四分之一波板作为滚动角敏感元件。首先,通过琼斯矩阵和 Zemax 仿真评估了该方法的可行性。随后,进行了理论和实验分析,以评估使用角立方体反射器作为逆反射器对滚动测量的影响。最后,开发了相应的测量设备,并进行了一系列综合实验。实验结果表明,这种方法的测量灵敏度为 7 mV/arcsec。与商用自动准直仪相比,± 100 弧秒内的对比度偏差为 ± 1 弧秒。在气浮导轨上测量的重复性为 1.3 弧秒,与电子水平相比,最大对比度偏差为 2.5 弧秒。因此,所提出的方法具有精度高、结构简单、成本低的优点,为高精度轧辊测量提供了一种新技术。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

High-Precision Roll Measurement Method Based on Laser Polarization

High-Precision Roll Measurement Method Based on Laser Polarization

Linear guides are essential components of precision equipment, such as computer numerical control machine tools and coordinate measuring machines. The key to improving their accuracy is to conduct high-precision measurements and effectively compensate for the six degrees of freedom errors that emerge during motion. However, the roll is a difficult parameter for achieving high-precision measurements in laser measurements, and it has yet to be effectively addressed. This study presents a high-precision and high-sensitivity roll measurement method based on the laser polarization state. The method employs a quarter-wave plate as the roll angle sensitive component. Firstly, the feasibility of this method was assessed through the Jones matrix and Zemax simulations. Subsequently, both theoretical and experimental analyses were conducted to evaluate the impact of using a corner cube reflector as a retroreflector on roll measurements. Finally, a corresponding measurement device was developed, and a series of comprehensive experiments were executed. The experimental findings indicate a measurement sensitivity of 7 mV/arcsec for this method. In comparison to commercial autocollimators, the contrast deviation within ± 100 arcsec is ± 1 arcsec. The repeatability of measurements on the air-floating guide rail is 1.3 arcsec, with a maximum contrast deviation of 2.5 arcsec compared to the electronic level. Thus, the proposed method offers the advantages of high precision, simple structure, and low cost and provides a new technique for high-precision roll measurement.

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来源期刊
CiteScore
4.10
自引率
10.50%
发文量
115
审稿时长
3-6 weeks
期刊介绍: The International Journal of Precision Engineering and Manufacturing accepts original contributions on all aspects of precision engineering and manufacturing. The journal specific focus areas include, but are not limited to: - Precision Machining Processes - Manufacturing Systems - Robotics and Automation - Machine Tools - Design and Materials - Biomechanical Engineering - Nano/Micro Technology - Rapid Prototyping and Manufacturing - Measurements and Control Surveys and reviews will also be planned in consultation with the Editorial Board.
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