Image-type displacement measurement resolution improvement without magnification imaging
文献类型：期刊论文
| 作者 | H. Yu |
| 刊名 | Measurement Science and Technology
 |
| 出版日期 | 2022 |
| 卷号 | 33期号:1页码:7 |
| ISSN号 | 0957-0233 |
| DOI | 10.1088/1361-6501/ac2feb |
| 英文摘要 | The imaging-type displacement measurement (IDM) technique is better-suited to high-resolution measurement than the traditional moire fringe technique. In Angular displacement measurement, IDM generally requires lens-magnified imaging processes to reach the proper resolution, which depends on overly large imaging lenses and highly complex, generally unreliable equipment, making the technique not conducive to industrial application. The resolution of an IDM device was improved in this study without the use of an imaging lens. The lensless imaging principle was established, then a new algorithm based on multi-line fusion and denoising was developed to improve the displacement subdivision resolution. The proposed algorithm was verified by both simulation and experimentation. The simulation shows that the proposed algorithm effectively reduces positioning operation noise. In the experiment, an angular measurement resolution of 0.039 '' (25-bit) was achieved on a 70 mm diameter circular grating. The proposed method lays a foundation for further high-resolution displacement measurement techniques. |
| URL标识 | 查看原文 |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/65316]  |
| 专题 | 中国科学院长春光学精密机械与物理研究所 |
| 推荐引用方式 GB/T 7714 | H. Yu. Image-type displacement measurement resolution improvement without magnification imaging[J]. Measurement Science and Technology,2022,33(1):7. |
| APA | H. Yu.(2022).Image-type displacement measurement resolution improvement without magnification imaging.Measurement Science and Technology,33(1),7. |
| MLA | H. Yu."Image-type displacement measurement resolution improvement without magnification imaging".Measurement Science and Technology 33.1(2022):7. |
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