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IEC TR 60444-4:1988 EN-FR
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 60483:1976 EN-FR
Guide to dynamic measurements of piezoelectric ceramics with high electromechanical coupling
现行
发布日期 :
1976-01-01
实施日期 :