| 基于互相关的超声非介入测压方法 |
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| 引用本文： | 黄姣英,安晨亮,袁海文,王秋生,崔勇.基于互相关的超声非介入测压方法[J].测控技术,2009,28(11). |
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| 作者姓名： | 黄姣英 安晨亮 袁海文 王秋生 崔勇 |
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| 作者单位： | 1. 北京航空航天大学自动化科学与电气工程学院,北京,100191
2. 中国航天发射技术研究所,北京,100191 |
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| 基金项目： | 航天科技创新基金项目，教育部博士点基金项目 |
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| 摘 要： | 非介入测压对液压系统的故障诊断与检测具有关键作用,为了提高超声非介入式测压的测量精度,提出了一种基于互相关理论的超声延时计算方法,实验结果与客观实际较为相符,验证了基于互相关理论的超声非介入压力测量技术的可行性,为小管径液压系统的在线压力测量提供了一种新的方法.
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| 关 键 词： | 非介入压力测量 超声波 互相关 液压系统 |
Method for Ultrasonic Non-Intrusive Pressure Measurement Based on Cross-Correlation Theory |
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| HUANG Jiao-ying,AN Chen-liang,YUAN Hai-wen,WANG Qiu-sheng,CUI Yong.Method for Ultrasonic Non-Intrusive Pressure Measurement Based on Cross-Correlation Theory[J].Measurement & Control Technology,2009,28(11). |
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| Authors: | HUANG Jiao-ying AN Chen-liang YUAN Hai-wen WANG Qiu-sheng CUI Yong |
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| Abstract: | Non-intrusive pressure measurement play a crucial role in the failure diagnosis and detection of hy-draulic system. The method based on ultrasonic is discussed. In order to improve the measuring accuracy, the time delay estimation method based on cross-correlation theory is proposed. Also the measurement system via ultrasonic technique is designed. The results indicate that the proposed method is feasible for non-intrusive pressure measurement. It offers a new online pressure measurement method for hydraulic system which diameter of the pipes is less than 15 mm |
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| Keywords: | Non-intrusive pressure measurement ultrasonic cross-correlation hydraulic system |
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