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Novel optical encoder for harsh environments

机译：适用于恶劣环境的新型光学编码器

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摘要

We are presenting a new optical encoder architecture for shaft encoding, both in incremental and absolute modes. This encoder is based on a diffractive optics technology platform. We have developed various disk based rotary diffractive encoders previously. This encoder is different in the way it is not a disk composed of successive gratings or computer generated holograms, but rather composed of a single element placed on the shaft. It is thus best suited for hollow shaft or end of shaft applications such as in encoder controlled electrical motors. This new architecture aims at solving some of the problems encountered with previous implementations of diffractive encoders such as disk wobble, disk to shaft centering and also encoding in harsh environments.
机译：我们将介绍一种用于增量和绝对模式的轴编码的新型光学编码器架构。该编码器基于衍射光学技术平台。我们以前已经开发了各种基于磁盘的旋转衍射编码器。该编码器的不同之处在于，它不是由连续的光栅或计算机生成的全息图组成的磁盘，而是由放置在轴上的单个元素组成的。因此，它最适合空心轴或轴端应用，例如在编码器控制的电动机中。这种新的体系结构旨在解决衍射编码器先前实现中遇到的一些问题，例如磁盘摆动，磁盘到轴对中以及在恶劣环境中进行编码。

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