| 应用微型计算机提高摆的振幅衰减测量精度 |
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| 引用本文： | 耿冰,刘春明.应用微型计算机提高摆的振幅衰减测量精度[J].辽宁大学学报(自然科学版),2009,36(2):143-145. |
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| 作者姓名： | 耿冰 刘春明 |
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| 作者单位： | 1. 辽宁省新闻出版学校,辽宁,沈阳,110032
2. 东北大学材料与冶金学院,辽宁,沈阳,110004 |
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| 摘 要： | 为了提高摆的振幅衰减的测量精度,采用下列改进方法：使用CCD线阵—2048个发光元件平均分布在3 cm的单元中,用来代替光电池.应用微型计算机控制系统收集光标数据.使测量的电压转换为被反射的扭转角的数字逻辑信号.当摆和感应器中的反射镜之间距离达3 m时,扭转角度为5×10^-6rad.
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| 关 键 词： | 摆 微型计算机 振幅衰减 测量精度 |
Application of Micro-Computer to Improve Measurement Accuracy of The Amplitude Attenuation in Pendulum |
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| GENG Bing,LIU Chun-ming.Application of Micro-Computer to Improve Measurement Accuracy of The Amplitude Attenuation in Pendulum[J].Journal of Liaoning University(Natural Sciences Edition),2009,36(2):143-145. |
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| Authors: | GENG Bing LIU Chun-ming |
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| Institution: | 1.Liaoning Province News and Publishing School;Shenyang 110032;China;2.College of Materials and Metallurgy;Northeastern University;Shenyang 110004;China |
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| Abstract: | To improve the measuring accuracy of the attenuation amplitude in pendulum,the following renovation methods were adopted:The Charge-Coupled Device(CCD),which had 2048 light units that could be divided equally in 3 cm range of transform,was used to replace the photocell.In addition,a micro-computer control system was used to collect data of the light position.As a result,levels of voltage of photocells should be replaced by the logistic signal as the means to reflect the torsion angle.When the distance betwe... |
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| Keywords: | Pendulum Attenuation amplitude Measuring accuracy |
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