摘要
介绍了一种基于VC++用加速度传感器实时测量高压变电站主变压器振动位移信号的方法。首先将加速度谱进行频谱变换,计算每个频率分量对应的幅值,进而对这些幅值比较检测出振动信号频率,然后将所需幅值进行叠加运算,根据时域信号和频域信号能量对应关系即可求出简谐振动信号位移幅值和加速度幅值。验证试验结果表明该方法可行,实时性、精度可满足工程实践的需要。
This thesis introduces a method of the main transformer vibration displacement of high - voltage substation measured with ac- celeration sensor based on VC ＋ ＋. This algorithm first changes acceleration spectrum into frequency spectrum, calculates its ampli- tude related to every frequency spectrum, detects the vibration frequency comparing these frequency amplitudes, finally sums the requi- site frequency amplitudes to find the simple harmonic signal displacement amplitude and the acceleration amplitude according to the time - domain signal and frequency domain signal energy conservation theorem. Verifying test results show that the algorithm is feasible and its real - time/precision meets the needs of engineering practices.
出处
《网络新媒体技术》
2012年第5期36-40,共5页
Network New Media Technology
关键词
VC++
变压器
加速度
位移
频谱
VC ＋ ＋ , transformer, acceleration, displacement, frequency spectrum
