Institute of Mechanical Science, Vilnius Gediminas Technical University, J. Basanavičiaus Str. 28, LT-03224 Vilnius, Lithuania.
Department of Automation, Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin, Poland.
Sensors (Basel). 2022 Apr 13;22(8):2977. doi: 10.3390/s22082977.
Optical linear encoders are widely used in manufacturing. They are accurate and have a relatively high resolution and good repeatability. However, there are a lot of side effects, which have an inevitable impact on the performance of an encoder. In general, the majority of these effects could be minimized by the appropriate design of an encoder's reading head. This paper discusses the working principle of and commonly occurring errors in optical linear encoders. Three different mechanical designs are developed and implemented in the experimental reading head of the linear encoder in order to evaluate how mechanical construction influences the displacement measurement accuracy and total performance of the encoder.
光学线性编码器在制造业中得到了广泛应用。它们精度高，分辨率相对较高，重复性好。但是，它们也存在很多副作用，这对编码器的性能必然会产生影响。通常，可以通过适当的设计来最小化编码器读数头的这些副作用。本文讨论了光学线性编码器的工作原理和常见误差。为了评估机械结构如何影响位移测量精度和编码器的整体性能，我们开发并实现了三种不同的机械设计，应用于线性编码器的实验读数头中。
