| Measuring Acoustic Wave Transit Time in Furnace Based on Active Acoustic Source Signal |
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| 作者姓名： | Zhen Luo Feng Tian Xiao-Ping Sun |
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| 作者单位： | Zhen Luo~* Feng Tian Xiao-Ping Sun Shenyang Institute of Aeronautical Engineering，Shenyang 110034，PRC |
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| 基金项目： | This work was supported by the Project of Scientific Research of the Education Department of Liaoning Province,PRC(No.202023083). |
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| 摘 要： | Accurate measurement of transit time for acoustic wave between two sensors installed on two sides of a furnace is a key to implementing the temperature field measurement technique based on acoustical method.A new method for measuring transit time of acoustic wave based on active acoustic source signal is proposed in this paper,which includes the followings:the time when the acoustic source signal arrives at the two sensors is measured first;then,the difference of two arriving time arguments is computed,thereby we get the transit time of the acoustic wave between two sensors installed on the two sides of the furnace.Avoiding the restriction on acoustic source signal and background noise,the new method can get the transit time of acoustic wave with higher precision and stronger ability of resisting noise interference.
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| 关 键 词： | 声波 声源信号 转换时间 交叉关系 到达时间 |
| 收稿时间： | 2005-11-11 |
| 修稿时间： | 2006-04-24 |
Measuring acoustic wave transit time in furnace based on active acoustic source signal |
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| Zhen Luo Feng Tian Xiao-Ping Sun.Measuring Acoustic Wave Transit Time in Furnace Based on Active Acoustic Source Signal[J].International Journal of Automation and computing,2007,4(1):52-55. |
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| Authors: | Zhen Luo Feng Tian Xiao-Ping Sun |
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| Affiliation: | (1) Shenyang Institute of Aeronautical Engineering, Shenyang, 110034, PRC |
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| Abstract: | Accurate measurement of transit time for acoustic wave between two sensors installed on two sides of a furnace is a key to implementing the temperature field measurement technique based on acoustical method.A new method for measuring transit time of acoustic wave based on active acoustic source signal is proposed in this paper,which includes the followings:the time when the acoustic source signal arrives at the two sensors is measured first;then,the difference of two arriving time arguments is computed,thereby we get the transit time of the acoustic wave between two sensors installed on the two sides of the furnace.Avoiding the restriction on acoustic source signal and background noise,the new method can get the transit time of acoustic wave with higher precision and stronger ability of resisting noise interference. |
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| Keywords: | Active acoustic source signal transit time cross correlation arrival time |
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