摘要
在一般应用单片机的莫尔条纹细分电路中增添一个模拟乘法器和少量的外围元件，可明显降低因二路信号幅值不等引起的测量误差，同时使分辨力提高一倍。该电路结构简单，调整使用方便，对元件的参数要求不高。
When an analog multiplier and a few of elements are added into moirefringe interpolation circuit with the single chip microcomputer,the errors caused by differ inamplitudes of the moire fringe signals reduce distinctly. The resolution of this circuit is dou- bled.This circuit is simple and practical.It reduces the requirements for the precision of theelements.
出处
《沈阳理工大学学报》
CAS
1994年第3期38-42,共5页
Journal of Shenyang Ligong University
关键词
模拟乘法器
幅值
测量误差.
analog multiplier,measuring error,amplitude.
