| 塑料管壁厚超声测量的信号处理 |
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| 引用本文： | 程耀瑜,张记龙,李仰军,杨录. 塑料管壁厚超声测量的信号处理[J]. 中北大学学报(自然科学版), 1995, 0(3) |
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| 作者姓名： | 程耀瑜 张记龙 李仰军 杨录 |
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| 作者单位： | 华北工学院 |
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| 摘 要： | 为了保证塑料管挤出的质量以及为自动控制挤出生产线提供数据，需要在线测量塑料管的壁厚。本文研究壁厚超声测量的信号处理方法，通过对回波信号时域和频谱的分析，并结合测量精度的要求，提出了处理电路应具有的性能指标及设计方法，并用实验数据进行了验证。
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| 关 键 词： | 壁厚；超声；频谱；信号处理；触发误差；带宽 |
THE SIGNAL PROCESSING OF THE ULTRASONICMEASUREMENTOFPLASTIC PIPE''''SWALLTHICKNESS |
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| Cheng Yaoyu,Zhang Jilong ,LiYangjun ,Yang Lu. THE SIGNAL PROCESSING OF THE ULTRASONICMEASUREMENTOFPLASTIC PIPE''''SWALLTHICKNESS[J]. Journal of North University of China, 1995, 0(3) |
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| Authors: | Cheng Yaoyu Zhang Jilong LiYangjun Yang Lu |
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| Abstract: | In order to guarantee the quality of plastic pipes and provide data for automatic control of extruding process of the plastic pipes , it is necessary that the wall thick ness of plastic pipes is measured on-line. The paper studies the signal processing of the wall thickness by ultrasonic measurement. By means of the anal-ysis of the echo signais from time domain and frequency spectrum and considering the measurement procision,we put forward the properties that the signal process-ing circuits shoukl have and design of the circuits,which have been verified by ex-perimental data. |
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| Keywords: | wall thickness ultrasonic frequency spectrum signal processing error of trigger bandwidth |
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