Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : June 06, 2021 - June 08, 2021
AUVs (autonomous underwater vehicles) for underwater research are attracting attention for practical use in the fields of research and marine development. Positioning the self-position in water is an important function in AUV. There are many methods for positioning the self-position in the air, but when it comes to positioning in the water, radio waves cannot be used, so ultrasonic waves were used. In order to create an inexpensive and high-performance underwater self-positioning system, we created a microphone circuit and speaker circuit, conducted a microphone sensitivity experiment underwater, and conducted a prediction experiment of the distance between microphones using the propagation time difference of ultrasonic waves.
