| Straightness Measurement Using Laser Diode and CCD Camera |
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| 作者姓名： | HAO Qun ZHAO Yang LI Dacheng CAO Mang |
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| 作者单位： | State Key Laboratory of Precision Measurement Technology and
Instrument，Tsinghua University，Beijing 100084，China |
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| 摘 要： | １ＩｎｔｒｏｄｕｃｔｉｏｎＩｎｍａｎｕｆａｃｔｕｒｅａｎｄａｓｅｍｂｌｅｏｆｍｏｄｅｒｎｍａｃｈｉｎｅｓａｎｄｉｎｓｔｒｕｍｅｎｔｓ，ａｎｉｎｄｉｓｐｅｎｓａｂｌｅｒｅｑｕｉｒｅｍｅｎｔｉｓｔｈｅｃｏｎｔｒｏｌｏｆｆｏｒｍａｎｄｐｏｓｉｔｉｏｎｅｒｏ...
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| 收稿时间： | 1998/8/11 |
Straightness Measurement Using Laser Diode and CCD Camera |
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| HAO Qun ZHAO Yang,LI Dacheng CAO Mang.Straightness Measurement Using Laser Diode and CCD Camera[J].中国激光(英文版),1999,8(3):215-220. |
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| Authors: | HAO Qun ZHAO Yang LI Dacheng CAO Mang |
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| Abstract: | This paper focuses on measuring straightness of large-scale dimension by using laser diode fiber alignment, diffraction imaging technique and a CCD camera. In this method, we use a laser diode fiber alignment beam as the datum reference of straightness, deviation of the measured from this datum, can be detected by a CCD camera directly. Also a novel image processing algorithm is presented. The experiment result shows that the measurement range of L (m), the measurement accuracy of the system is 3＋2.3×10-6L(μm). |
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| Keywords: | straightness aligned laser beam phase plate CCD camera |
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