2.2.21 антирезонансная частота (anti-resonance frequency) fa: Высшая из двух частот кварцевого резонатора в установленных условиях, при которой электрический импеданс кварцевого резонатора является резистивным.
Источник: ГОСТ Р МЭК 60122-1-2009: Резонаторы оцениваемого качества кварцевые. Часть 1. Общие технические условия оригинал документа
Англо-русский словарь нормативно-технической терминологии. academic.ru. 2015.
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