Modern coordinate measuring machines (CMMs) feature high-precision scanning due to improved mechanics, electronics, control, and software. PTB’s Coordinate Metrology department therefore executed a thorough experimental comparison of the performance of scanning and discrete point probing regarding involute gear calibrations. In the last four years, PTB used scanning and discrete point probing to calibrate 29 different gear geometries covering a wide range of industry-relevant workpieces. Based on these extensive experiments and their analysis regarding measurement results, uncertainty and time, PTB decided to use scanning for gear calibrations in the future while guaranteeing the same measurement uncertainties and the same high level of reliability. This paper comprises an overview of tactile CMM scanning technology, PTB’s gear calibration strategy, the measurement results, measurement uncertainty analyses, and a discussion of the task-specific advantages and challenges of scann...

中文翻译：

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在扫描模式下使用触觉CMM进行渐开线齿轮校准

由于改进了机械，电子，控制和软件，现代坐标测量机（CMM）具有高精度扫描功能。因此，PTB的坐标计量部门对渐开线齿轮校准的扫描和离散点探测的性能进行了彻底的实验比较。在过去的四年中，PTB使用扫描和离散点探测来校准29种不同的齿轮几何形状，从而覆盖了与行业相关的各种工件。基于这些广泛的实验及其对测量结果，不确定性和时间的分析，PTB决定在将来使用扫描进行齿轮校准，同时保证相同的测量不确定性和相同的高度可靠性。本文概述了触觉CMM扫描技术，