| 功率谱分析在混凝土质量超声检测中的应用研究 |
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| 引用本文： | 田惠生,曹秀国.功率谱分析在混凝土质量超声检测中的应用研究[J].西安交通大学学报,1997,31(12):14-19. |
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| 作者姓名： | 田惠生 曹秀国 |
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| 作者单位： | 西安交通大学 |
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| 摘 要： | 对超声换能器发射的超声功率谱作了讨论，分析了超声脉冲在混凝土中传播的功率谱特性，在此基础上，提取了超声功率谱特征参数，提出了一种应用模糊集理论对波形完好程度进行判别的新方法，实验结果表明了这种方法的有效性。
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| 关 键 词： | 混凝土 功率谱 质量 超声检测 无损检测 |
Study on the Application of the Power Spectrum Analysis in the Qualitive Testing of Concrete by the Ultrasonic Pulse |
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| Tian,Huisheng,Cao,Xiuguo,Li,Yanning.Study on the Application of the Power Spectrum Analysis in the Qualitive Testing of Concrete by the Ultrasonic Pulse[J].Journal of Xi'an Jiaotong University,1997,31(12):14-19. |
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| Authors: | Tian Huisheng Cao Xiuguo Li Yanning |
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| Abstract: | The power spectrum of the ultrasonic transducer is disscussed. Based on the po wer spectrum property of the ultrasonic pulse propagation in concrete, the characteristic parameters are extracted. A new method evaluating the perfection of the ultrasonic waveform with fuzzy sets theory is proposed. Experimental results show that this method is effective. |
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| Keywords: | concrete ultrasonic pulse fuzzy set power spectrum |
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