Measurement of quartz crystal unit parameters - Part 7: Measurement of activity and frequency dips of quartz crystal units
石英晶体单元参数的测量.第7部分:石英晶体单元的活性和频率下降的测量
发布日期:
2004-04-05
IEC 60444-7:2004适用于温度范围内石英晶体单元的活性和频率下降。
IEC 60444-7:2004 applies to activity and frequency dips for quartz crystal units over a temperature range.