一种基于超声共振谱的低Q值材料共振频率提取方法1)
张强,樊璠,王蕊,沈飞,牛海军(
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A RESONANCE FREQUENCY EXTRACTION METHOD FROM LOW Q-FACTOR MATERIALS BASED ON RESONANT ULTRASOUND SPECTROSCOPY1)
Zhang Qiang,Fan Fan,Wang FeiNiu,Shen Fei,Niu Haijun()
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图 3. 样本在70$\sim$400 kHz范围中一次频率响应和用新方法提取的26个共振频率(*标出的位置为6次实验中出现3以上的共振峰位置, 直线表示共振峰均值)
Fig. 3. One of 6 frequency response of the specimen between 70 and 400 kHz and 26 resonant frequencies distributions by new method (*: The calculated resonant frequencies presented in at least 3 times; vertical line: the mean values of the resonant frequencies)
