| 过零穿越极性相关法测量高温烟气流速技术的研究 |
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| 引用本文： | 周洁,袁镇福,浦兴国,王昆,陆永刚,岑可法.过零穿越极性相关法测量高温烟气流速技术的研究[J].中国电机工程学报,1999,19(3):11-13,45. |
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| 作者姓名： | 周洁 袁镇福 浦兴国 王昆 陆永刚 岑可法 |
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| 作者单位： | 浙江大学热能工程研究所,310027,杭州 |
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| 摘 要： | 应用过零穿越极性相关方法测量这道内温烟气流速的系统，采用单片微机及自行开发的扩展系统和过零穿越法，对烟气流动噪声信号作极性相关处理，快速搜寻峰值对应的时延值，并据此求得烟气流动速度。
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| 关 键 词： | 高温 烟气流速 测量 过零穿越算法 |
STUDY OF ZERO-CROSSING POLARITY CORRELATION FOR VELOCITY MEASUREMENT OF HIGH TEMPERATURE FLUE GAS |
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| Zhou Jie,Yuan Zhenfu,Pu Xingguo,Wang Kun,Lu Yonggang,Cen Kefa.STUDY OF ZERO-CROSSING POLARITY CORRELATION FOR VELOCITY MEASUREMENT OF HIGH TEMPERATURE FLUE GAS[J].Proceedings of the CSEE,1999,19(3):11-13,45. |
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| Authors: | Zhou Jie Yuan Zhenfu Pu Xingguo Wang Kun Lu Yonggang Cen Kefa |
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| Abstract: | A zero crossing polarity correlation measurement method is proposed for the velocity of high temperature flue gas in pipe.We developed an experimental system consisting of one chip microcomputer and its extended system and applied zero crossing algorithm to the flow noise of high temperature flue gas.A delay time corresponding to correlation peak is obtained through fast seeking and changed into the flow velocity.The experimental results demonstrate that the correlation technique is a prospective on line measurement method with high precision,short measuring time and commercially reliability. |
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| Keywords: | Polarity correlation\ Zero crossing\ High temperature flue gas\ Flow velocity |
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