The virtual signal generator has 12-channels outputs for linear scanningfrequency signal or fixed frequency sine wave excitation signal.
该发生器可以输出相位差可调的12通道线性扫频正弦激励信号或者输出12通道定频正弦激励信号。
2
The EB scanning track, scanningfrequency and energy density distribution at heating zone could be programmed off-line and adjusted on-line.
利用该系统可对电子束扫描轨迹、扫描频率以及加热区域电子束能量密度的分配进行离线编辑和在线调节。
3
A method of frequency spectrum analysis is introduced, which be realized by collect the virtual value of appoint frequency vibration through scanningfrequency.