| 基于定点DSP的计算阶次跟踪研究 |
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| 引用本文： | 温政钢,栾军英.基于定点DSP的计算阶次跟踪研究[J].装甲兵工程学院学报,2010,24(4). |
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| 作者姓名： | 温政钢 栾军英 |
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| 作者单位： | 军械工程学院,火炮工程系,河北,石家庄,050003 |
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| 摘 要： | 对于转速变化的旋转机械,常规的频谱分析方法不能反映其振动信号的真实状态;同时,在转速变化剧烈的情况下,传统阶次分析仪器采用的转速脉冲到达时刻测量方法精度不高。针对以上问题,采用基于定点DSP的计算阶次跟踪方法,通过TMS320C5402定时器的精确计时功能实现高精度转速脉冲到达时刻的测量,同时利用DSP的McBSP(Multi-channel Buffered Serial Port,多通道缓冲串行口)同步采集振动信号,实现混合信号的采集和处理,完成基于DSP的实时阶次跟踪,并通过变速箱启动的实例验证了算法的有效性。
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| 关 键 词： | 阶次跟踪 旋转机械 混合信号处理 数字信号处理器 |
Research on Computed Order Tracking Based on Fixed-point DSP |
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| WEN Zheng-gang,LUAN Jun-ying.Research on Computed Order Tracking Based on Fixed-point DSP[J].Journal of Armored Force Engineering Institute,2010,24(4). |
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| Authors: | WEN Zheng-gang LUAN Jun-ying |
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| Institution: | WEN Zheng-gang; LUAN Jun-ying(Department of Artillery Engineering; Ordnance Engineering College; Shijiazhuang 050003; China); |
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| Abstract: | As to the non-stationary vibration signals,traditional spectral analysis can not reflect the real state.At the same time,the measurement accuracy of the keyphasor pulse arrival time is not enough when the speed is changing fiercely.To solve the above problems,computed order tracking based on fixed-point DSP (Digital Signal Processor) is used in this paper.Precision measurement of the speed signal is realized with precision timing of TMS320C5402,while the vibration signal acquisition is completed with the Mc... |
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| Keywords: | order tracking rotating machinery mixed signal process Digital Signal Processor（DSP） |
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