| 获得转速脉冲触发阈值的精确时标研究 |
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| 引用本文： | 李之雄,郭瑜,刘文彬.获得转速脉冲触发阈值的精确时标研究[J].昆明理工大学学报(理工版),2007,32(6):12-16. |
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| 作者姓名： | 李之雄 郭瑜 刘文彬 |
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| 作者单位： | 昆明理工大学,机械电子工程系,云南,昆明,650093 |
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| 基金项目： | 云南省自然科学基金资助项目(项目编号:2004E0011Q) |
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| 摘 要： | 提出了一种基于脉冲沿准确估计的阈值时标精确插值新方法.在LabVIEW平台下,用模拟变速随机脉冲信号和实测转子试验台的光电转速脉冲对该算法进行了测试,证明该方法能有效消除阈值对误差的影响,能在较低采样率下实现阈值时标的精确插值.本方法比传统的线性插值方法具有更高的精度,在提高转转速计算精度上具有重要应用价值和现实意义.
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| 关 键 词： | 插值 转速 脉冲 阈值 LabVIEW 旋转机械 |
| 文章编号： | 1007-855X（2007）06-O012-05 |
| 收稿时间： | 2007-04-20 |
| 修稿时间： | 2007年4月20日 |
Study on Obtaining Thresholds Precise Time Mark of Tacho Pulses |
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| LI Zhi-xiong,GUO Yu,LIU Wen-bin.Study on Obtaining Thresholds Precise Time Mark of Tacho Pulses[J].Journal of Kunming University of Science and Technology(Natural Science Edition),2007,32(6):12-16. |
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| Authors: | LI Zhi-xiong GUO Yu LIU Wen-bin |
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| Abstract: | A new interpolation method based on precisely estimating edge of pulse is introduced in this paper.The algorithm is tested by using the new method to process both simulated random speed variable tacho pulse and actual testing tacho pulse on LabVIEW platform.It is proved through the results that the new interpolation method effectively eliminates the error caused by threshold and achieves high interpolation precision even under some low sample frequency.The method is able to achieve higher interpolation precision than traditional linear interpolation method,which is of great importance in improving precision on speed calculation. |
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| Keywords: | interpolation tacho pulse threshold LabVIEW rotating machinery |
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