Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : March 06, 2023 - March 07, 2023
Monitoring of body and bladder water content can help prevent diseases and incontinence caused by water deficiency. Current methods for measuring body water content are not suitable for use in daily life. In this study, we propose a method using the phase difference of transmitted radio waves. Radio waves in a material have a characteristic that the propagation speed changes depending on the frequency and the electrical properties of the material. As a basic experiment, radio waves of different frequencies were irradiated while increasing the amount of water, and the changes in the phase difference of the transmitted radio waves were measured. This technique can capture changes in water content based on the difference in phase difference due to frequency, and is expected to be used for non-contact measurement over long periods of time in daily life.
