IEC TR 60444-4:1988 EN-FR 646162bc
Measurement of quartz crystal unit parameters by zero phase technique in a pi-network. Part 4: Method for the measurement of the load resonance frequency fL, load resonance resistance RL and the calculation of other derived values of quartz crystal units, up to 30 MHz
现行
发布日期 :
1988-06-30
实施日期 :
IEC 60122-1:2002 EN-FR 6efdcb4e
Quartz crystal units of assessed quality - Part 1: Generic specification
现行
发布日期 :
2002-08-09
实施日期 :
IEC 60444-1:1986 EN-FR bb39c7ce
Measurement of quartz crystal unit parameters by zero phase technique in a pi-network - Part 1: Basic method for the measurement of resonance frequency and resonance resistance of quartz crystal units by zero phase technique in a pi-network
现行
发布日期 :
1986-08-15
实施日期 :
IEC 60444-1:1986/AMD1:1999 EN-FR 16254ac0
Amendment 1 - Measurement of quartz crystal unit parameters by zero phase technique in a pi-network. Part 1: Basic method for the measurement of resonance frequency and resonance resistance of quartz crystal units by zero phase technique in a pi-network
现行
发布日期 :
1999-08-13
实施日期 :

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