[23a-12E-1~13] 1.6 Ultrasonics

12:15 PM - 12:30 PM JST(3:15 AM - 3:30 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[23a-12E-13] Anisotropy measurements of acoustically induced electric polarization using an ultrasonic array probe

〇(B)Haruya Inoko¹, Nobuto Kaitoh¹, Kenji Ikushima^1,2 (1.Tokyo Univ. of A & T, 2.ASEMtech Inc.)

Keywords:

ultrasound,piezoelectricity,biological fibrous tissues

Piezoelectric polarization in biological fibrous tissue is a summation of the polarization generated in each collagen fiber and can therefore be an indicator to judge the orientation of the tissue. The purpose of this research is to detect the anisotropy of piezoelectric polarization induced by ultrasound pressure in human body tissues (acoustically induced polarization) using an ultrasonic array probe for human measurements. We performed experiments to detect the anisotropy of polarization in a GaAs(110) wafer with known piezoelectricity and in human body tissues such as tendons in the forearm.