摘要
本文采用虚拟仪器的开发方法,基于LabVIEW开发环境,该系统能够对采集的振动信号进行FFT幅值谱分析、自功率谱分析、倒谱分析、对数谱分析、能量谱分析。根据采集的信号,选择合适的分析方式,能够分析出信号的所含频谱成分。讨论了驱动程序接口、数据采集模块、频域分析等关键技术环节的设计要点和具体程序框图。
By using virtual instrument development method in LABVIEW environment, the acquisition vibration signal＇s FFT amplitude spectrum, autopower spectrum, cepstrum, log-spectrum, energy spectrum can be analyzed in this system. According to acquisition signal, the spectrum component in the signal can be analyzed by selecting proper method. It discusses the key technology design of driving program interface, data acquisition module, frequency-domain analysis and program diagram in this paper.
出处
《电子测量技术》
2008年第6期108-110,120,共4页
Electronic Measurement Technology
