用数字式电压表测量相位差

Measure of Phase Displacement by Voltmeter and Dealing with Data by Computer

比较了利用电压表和双踪示波器测量相位的差两种不同方法，说明前者具有优越性，并利用微机对数据进行了处理。

Compared with the measure of phase displacement by double-trace oscillograph. the superiosity of the measure by numerical voltmeter is explained. The method of dealing with data by computer is also introduced.