Measurement of Vibration at a Surface Using an Ultrasonic Probe
Measurement of Vibration at a Surface Using an Ultrasonic Probe
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使用超声波探头测量表面振动
DOI：
10.1143/jjap.35.3084
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发表时间：
1996
期刊：
影响因子：
--
通讯作者：
K. Nagai
中科院分区：
文献类型：
--
作者：
N. Wakatsuki;K. Mizutani;K. Nagai
我们提出了一种可以区分纵向和横向振动的接触式超声波探头。与使用会聚光束的探头相比，我们的探头的分辨率不受波长限制，因此即使在低频下也具有高分辨率。实验证实该探头可以区分纵向和横向振动，并且其分辨率高于约4mm（1MHz左右的载波波长）。
We propose a contact ultrasonic probe which can distinguish between longitudinal and transverse vibrations. In contrast to a probe which uses a convergent beam, our probe has resolution which is not limited by the wavelength, so it has high resolution even at low frequencies. It is experimentally confirmed that the probe can discriminate longitudinal and transverse vibrations and that it has resolution higher than about 4 mm which is the wavelength of a carrier wave around 1 MHz.