本设计给出了以凌阳16位单片机Spce061A为核心的数字式相位测量的基本原理与实现方案。该系统由相位测量仪、数字式移相信号发生器和移相网络三个模块构成，分别由两块单片机独立地实现控制与显示功能。采用DDS技术生成两路正弦波信号，并通过改变存储器中数据读取的起始地址来实现数字移相的功能，用Ф-T变换技术来实现相位差的测量，使得测量分辨率精确到0.1o，测得的频率与相位差值送入LCD进行显示，加入红外键盘以及语音播报的功能，使得系统具有智能化、人性化的特色。-This design gives the basic principles and implementation of programs to Spce061A Sunplus 16-bit microcontroller as the core of digital phase measurement. The system consists of a phase meter, digital phase shifting generator and phase-shifting network of three modules, independently by two microcontroller for control and display functions, respectively. DDS technology used to generate two sine wave signals, and by changing the start address of the memory read data to realize the function of the digital phase shift, with Ф-T conversion technology to achieve a phase difference measurement, making accurate measurement resolution 0.1 the frequency and phase of the measured values ​ ​ into the LCD display, adding infrared keyboard and voice broadcast feature that makes the system with intelligent, user-friendly features.