加か振しんかしんじ字FuriganaMeanings1nounexcitation; vibration excitationTechnical term used in engineering, physics, and vibration analysis. Refers to applying an external force or input to cause vibration in a system.加か振しん試し験けんで構こう造ぞう物ぶつの共きょう振しん周しゅう波は数すうを調しらべた。We investigated the resonant frequency of the structure through an excitation test.