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| 光谱法测试长光栅性能 |
| Testing Performance of Long Grating by Means of Spectrum Method |
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| DOI: |
| 中文关键词: 光栅,莫尔,测试 |
| 英文关键词:Grating, Moire, Testing, |
| 基金项目: |
| 赵浩 曹向群 |
| 上海光机所14室!上海嘉定,201800,浙江大学光科系!杭州,310027 |
| 摘要点击次数: 1950 |
| 全文下载次数: 12 |
| 中文摘要: |
| 阐述了利用数字式光度计,对长光栅衍射的各级次能量进行测试的方法,研究了光栅各次信号的大小、有否缺级,以及有用信号的占有比重等问题。通过对长光栅整个行程的测试,清楚地了解了整根光栅使用时的信号波动情况,为更好地利用长光栅提供了有用的参考数据。 |
| 英文摘要: |
| In this paper,we test the diffraction spectrum of a long grating using a digital photometer We study the problems,such as the values of the subsignal,absence of the sig-nal,and the ratio of the useful singnal,so we can clearly understand the waving state of the signal when the whole long grating is used. The useful parameters are presented for the bet-ter utilization of the long grating' |
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