Imaging of Electromagnetic Properties via Ultrasonic Excitation

本研究的目的是发展一种无损传感技术（声刺激电磁法），通过超声波激发来测量物质的电磁特性。我们发现我们的方法可以评估(1)与胶原晶体相关的骨质量和(2)铁磁性铁合金的磁性分布。此外，我们还利用调幅超声波提高了射频检测方案的灵敏度。

The purpose of this study is to develop a nondestructive sensing technique (acoustically stimulated electromagnetic method) for measuring electromagnetic properties of matters through ultrasonic excitation. We showed that our method can evaluate (1) a bone quality related with collagen crystals and (2) magnetic distribution of ferromagnetic iron alloys. Furthermore, we improved the sensitivity of rf detection scheme by using amplitude-modulated ultrasonic waves.