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Calibration method for high-accuracy measurement of long focal length with Talbot interferometry

机译：Talbot干涉法高精度测量长焦距的校准方法

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摘要

In this paper, a new calibration method for accurate long focal-length measurements, based on Talbot interferometry, is presented. Error analysis is derived in detail by the numerical method, and an effective way to improve the accuracy is proposed. By this method, the systematic errors that are the main factors effecting accuracy are calibrated and reduced. Both simulation and experiments have been carried out to prove the effectiveness and advantages of the proposed method as compared to conventional approaches. The experimental results reveal that the relative error is lower than 0.02percent, and the repeatability is better than 0.05percent. This method is especially useful for measuring long focal-length lenses.
机译：在本文中，提出了一种基于Talbot干涉测量法的用于精确长焦距测量的新校准方法。通过数值方法详细推导了误差分析方法，提出了一种提高精度的有效方法。通过这种方法，可以校正和减少作为影响精度的主要因素的系统误差。仿真和实验均已进行，以证明与传统方法相比，该方法的有效性和优势。实验结果表明，相对误差小于0.02％，重复性优于0.05％。此方法对于测量长焦距镜头特别有用。

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