SJ/Z 9154.1-1987
用π型网络零相位法测量石英晶体元件参数 第一部分:测量石英晶体元件谐振频率和谐振电阻的基本方法
Use the zero phase technique in π-network to measure the quartz crystal unit parameters Part 1: Basic method for measurement of resonance frequency and resonance resistance of quartz crystal elements