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| 视差对测角精度影响探讨 |
| The investigation of the effect of parallax in angle measurement |
| 投稿时间:2014-04-26 |
| DOI:10.3969/j.issn.1005-5630.2014.06.004 |
| 中文关键词: 视差 眼瞳 测角 精度 |
| 英文关键词:parallax pupil angle measurement precision |
| 基金项目:河南省科技厅资助项目(122300410416) |
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| 中文摘要: |
| 光学仪器的装调误差会引起视差的存在,使得观察者眼瞳在仪器出瞳不同位置瞄准时会得到不同的结果,给测量精度带来比较大的影响。通过对仪器出瞳和眼瞳之间关系的计算分析可以发现,瞄准误差不仅与仪器视差量有关,而且与眼瞳放置位置、瞳孔直径大小和光学仪器的视角放大率有关。通过实际测量对比验证了视差对测量精度的影响分析。结果表明,随着眼睛偏离出瞳中心越远,瞄准误差也就越大。 |
| 英文摘要: |
| The observer's eye pupil on the different positions of the instrument will get different results for the parallax due to the presence of alignment error of optical instrument and result in great impact on measurement accuracy. Through the analysis of the relationship between eye pupil and the pupil of the instrument, the aiming error is related with the instrument parallax, eye position, pupil diameter and optical instrument visual magnification. The actual measurement verifies the influence of parallax on the measurement accuracy. The results show that the farther eyes are from the exit pupil, the larger aiming error is. |
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