The experimental results that the phase difference accuracy is less than 0 . 01 degree , which can meet the requirement of industrial fields 实验结果表明，采用这种方法后，其相位差测量准确度小于0 . 01 ，完全可以满足目前工业现场对相位差测量的要求。
A virtual phase difference meter is developed based on the principle of phase difference measurement of phase - locked loop , and the main requirements for data acquisition device are given 发了一种基于锁相环的相位测量原理而设计的虚拟相位差测量仪，并给出了该系统对数据采集设备的主要要求。
The short - baseline interferometer ’ s angle measurement accuracy is influenced by phase difference measuring accuracy , the base length measuring accuracy , the system operating wavelength ( frequency ) and so on , the article analyzes the existing theory , and emphatically analyzes the influence of base length measuring accuracy to the precision of angle measurement 短基线干涉仪测角精度受相位差测量精度、基线长度测量精度、系统工作波长(频率)测量精度等因素的影响,文中,在对原有理论进行分析的基础上着重分析了基线长度测量精度对系统角度测量精度的影响。
