【摘要】 高频率小位移振动信号的高精度测量可以使用光栅传感器来实现,但传感器输出莫尔条纹信号的频率也较高,这对信号采集和处理提出更高的要求。介绍了利用DSP和MAX115构成的系统对光栅传感器的两路输出信号进行高速同步采集,以及对光栅信号实现200倍频的软件细分方法。更多还原

【Abstract】 The signal frequency of moiré fringes sent from grating sensor used in vibration measurement is high relatively,which bring forward higher requirement for signal-sampling and signal-processing.Measure of simultaneous-sampling two channel signals sent from grating sensor,and soft-subdividing of moiré fringes in 200 based on simple system composed of DSP and MAX115 were introduced.更多还原