Measurement of quartz crystal unit parameters by zero phase technique in a pi-network - Part 2: Phase offset method for measurement of motional capacitance of quartz crystal units (IEC 60444-2:1980); German version EN 60444-2:1997
用pi网络中的零相位技术测量石英晶体元件参数.第2部分:测量石英晶体元件动态电容的相位偏移法(IEC 60444-2-1980);德文版EN 60444-2:1997