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IEC 60444-9:2007 ed1.0

Действует
Measurement of quartz crystal unit parameters - Part 9: Measurement of spurious resonances of piezoelectric crystal units — 29 стр.
IEC 60444-9:2007 describes two methods for determining the spurious (unwanted) modes of piezoelectric crystal resonators. It extends the capabilities and improves the reproducibility and accuracy compared to previous methods.
ICS
31.140 Piezoelectric devices / Пьезоэлектрические и диэлектрические приборы