ASME B89.4.19 Performance Evaluation Tests and Geometric Misalignments in Laser Trackers.

IF 1.5 4区工程技术

Journal of Research of the National Institute of Standards and Technology Pub Date : 2009-02-01 Print Date: 2009-01-01 DOI:10.6028/jres.114.003

B Muralikrishnan, D Sawyer, C Blackburn, S Phillips, B Borchardt, W T Estler

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引用次数: 78

Abstract

Small and unintended offsets, tilts, and eccentricity of the mechanical and optical components in laser trackers introduce systematic errors in the measured spherical coordinates (angles and range readings) and possibly in the calculated lengths of reference artifacts. It is desirable that the tests described in the ASME B89.4.19 Standard [1] be sensitive to these geometric misalignments so that any resulting systematic errors are identified during performance evaluation. In this paper, we present some analysis, using error models and numerical simulation, of the sensitivity of the length measurement system tests and two-face system tests in the B89.4.19 Standard to misalignments in laser trackers. We highlight key attributes of the testing strategy adopted in the Standard and propose new length measurement system tests that demonstrate improved sensitivity to some misalignments. Experimental results with a tracker that is not properly error corrected for the effects of the misalignments validate claims regarding the proposed new length tests.

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ASME B89.4.19激光跟踪仪的性能评估试验和几何失调。

激光跟踪器中机械和光学部件的微小和无意的偏移、倾斜和偏心会在测量的球坐标(角度和距离读数)中引入系统误差，并可能在计算的参考工件长度中引入系统误差。希望ASME B89.4.19标准[1]中描述的测试对这些几何偏差敏感，以便在性能评估期间识别任何产生的系统误差。本文采用误差模型和数值模拟的方法，分析了B89.4.19标准中长度测量系统和双面系统测试对激光跟踪仪对准误差的敏感性。我们强调了标准中采用的测试策略的关键属性，并提出了新的长度测量系统测试，该测试表明对某些错位的灵敏度有所提高。使用跟踪器进行的实验结果没有对不对准的影响进行适当的误差校正，验证了有关拟议的新长度测试的主张。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Research of the National Institute of Standards and Technology Engineering-General Engineering

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33.30%

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期刊介绍： The Journal of Research of the National Institute of Standards and Technology is the flagship publication of the National Institute of Standards and Technology. It has been published under various titles and forms since 1904, with its roots as Scientific Papers issued as the Bulletin of the Bureau of Standards. In 1928, the Scientific Papers were combined with Technologic Papers, which reported results of investigations of material and methods of testing. This new publication was titled the Bureau of Standards Journal of Research. The Journal of Research of NIST reports NIST research and development in metrology and related fields of physical science, engineering, applied mathematics, statistics, biotechnology, information technology.