摘要
设计了基于LabVIEW的虚拟信号频谱分析仪,并成功地进行了运行检测.利用NI公司的PCI6251数据采集卡,虚拟信号分析仪能够分析信号频率小于50 kHz,最大幅值小于5 V的电压信号的频谱;采集到的波形通过相应的程序处理模块处理,能够得到波形的频率、幅值、平均值和均方根等信息;波形信号、信号参数信息及波形的频谱分析结果能够通过保存模块以报表的形式进行保存.实验证明,所设计的频谱分析仪分析结果正确,程序运行稳定.
In our report, the virtual signal spectrum analyzer based on LabVIEW was designed, and the test was performed successfully. Amplitude signal fi＇equency which is less than 50 kHz and voltage which is lower than 5 V could be analyzed by the virtual spectrum analyzer. Waveforms collected were processed by the corresponding program module, and the waveform frequency, amplitude, mean, RMS and other information could be obtained. Waveform signal, the signal parameter information and the waveform of the spectrum analysis module could be saved in the form of statements. The results showed that the analysis data with the spectrum analyzer is correct, and the program runs smooth.
出处
《海南大学学报（自然科学版）》
CAS
2011年第2期162-165,共4页
Natural Science Journal of Hainan University
关键词
虚拟仪器
频谱分析
数据采集
virtual instruments
spectrum analysis
data collection
