Huining ZHAO, Jie WEN, Haojie XIA. High-precision angle measurement based on two-dimensional hybrid position encoding[J]. Optics and Precision Engineering, 2024, 32(5): 635

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- Optics and Precision Engineering
- Vol. 32, Issue 5, 635 (2024)
![Two-dimensional hybrid position coding disk[28]](/richHtml/gxjmgc/2024/32/5/635/img_1.jpg)
Fig. 1. Two-dimensional hybrid position coding disk[28]

Fig. 2. Flow chart of decoding

Fig. 3. Schematic diagram of measuring angle system based on two-dimensional hybrid position encoding

Fig. 4. Schematic diagram of measuring angle based on two-dimensional hybrid position encoding

Fig. 5. Measurement system of measuring angle error based on two-dimensional hybrid position encoding

Fig. 6. Error curves of angle measurement between proposed method and multi-tooth indexing table

Fig. 7. Measurement system of direct drive turntable angle positioning error based on two-dimensional hybrid position encoding

Fig. 8. Measurement curves of angle positioning error of direct drive turntable based on proposed method

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