| 基于ARM的振动传感器幅频特性测试系统研究 |
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| 引用本文： | 严家明,黄永阳,侯晓伟.基于ARM的振动传感器幅频特性测试系统研究[J].传感技术学报,2011,24(11):1564-1568. |
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| 作者姓名： | 严家明 黄永阳 侯晓伟 |
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| 作者单位： | 西北工业大学电子信息学院,西安,710129 |
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| 基金项目： | 航空科学基金项目(2010ZC53028) |
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| 摘 要： | 设计了以ARM微处理器为核心的中央控制处理单元,以完成振动传感器幅频特性测试的系统.利用ARM上集成的数字模拟转换电路(D/A)的输出通道1产生频率可调的等幅正弦信号,输出通道2对可变增益运放电路进行控制,使得振动传感器输出信号幅度在系统工作范围内,采用模拟数字转换电路(A/D)将振动传感器输出的信号整周期采样,对信号...
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| 关 键 词： | ARM 振动传感器 幅频特性 Goenzel算法 |
An arm based amplitude-frequency characteristic test system for the vibration sensor |
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| YAN Jiaming,HUANG Yongyang,HOU Xiaowei.An arm based amplitude-frequency characteristic test system for the vibration sensor[J].Journal of Transduction Technology,2011,24(11):1564-1568. |
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| Authors: | YAN Jiaming HUANG Yongyang HOU Xiaowei |
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| Affiliation: | (School of Electronic and Information,Northwestern Polytechnical University,Xi’an 710129,China) |
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| Abstract: | A central control process unit with ARM as its core is designed in order to implement the amplitude-frequency characteristic test system for the vibration sensor.Output channel 1 of the D/A of the ARM can generate a frequency-adjustable sine signal,while output channel 2 control the variable gain amplifier circuit.Thus the amplitude of the vibration sensoris output signal will be in the working range.Then full period sampling is done to the output signal,using A/D of the ARM.Finally Goertzel algorithm is used to detect the amplitude of signal.The accuracy and effectiven-Ess of this system is verified by the experiment results. |
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| Keywords: | ARM vibration sensor amplitude-frequency characteristics Goertzel algorithm |
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