| 基于声发射的超声谐振频率在线监测系统研究 |
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| 引用本文： | 张杰,王时英,吕明,轧刚.基于声发射的超声谐振频率在线监测系统研究[J].太原理工大学学报,2010,41(2). |
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| 作者姓名： | 张杰 王时英 吕明 轧刚 |
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| 作者单位： | 太原理工大学机械工程学院,太原,030024 |
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| 基金项目： | 周家自然科学基金资助项目 |
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| 摘 要： | 采用基2FFT算法原理编制了快速傅里叶变换程序,利用计算机声卡采集数据,通过测量超声振动系统的声发射信号,实现了超声振动系统谐振频率的在线实时监测。该系统为评价超声加工效果,分析加工过程中的力及其他加工参数对振动系统的影响提供了手段。
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| 关 键 词： | 基2FFT算法 谐振频率 在线监测 超声加工 声卡采集 |
Research on the On-line Monitoring System of Ultrasonic Resonant Frequency Based on Sound Emission |
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| ZHANG Jie,WANG Shi-ying,L Ming,YA Gang.Research on the On-line Monitoring System of Ultrasonic Resonant Frequency Based on Sound Emission[J].Journal of Taiyuan University of Technology,2010,41(2). |
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| Authors: | ZHANG Jie WANG Shi-ying L Ming YA Gang |
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| Institution: | ZHANG Jie,WANG Shi-ying,L(U) Ming,YA Gang |
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| Abstract: | An online frequency monitoring system,which is used to measure the resonant frequency of the sound emission from an ultrasonic vibratory system,is developed based upon data acquired by sound card in computer and an FFT program by means of Radix 2 algorithm.The system provides a method to evaluate the effects of ultrasonic machining and the influences of forces and other parameters in machining on vibratory system. |
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| Keywords: | Radix 2 FFT algorithm resonant frequency monitoring on line ultrasonic machining ound card acquisition |
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