超音波スピーカーの歪について

概要

論文の詳細を見る
An ultrasonic loudspeaker is a system that uses human audible range and can create sound fields specific courses. The purpose of this study is to improve distortion of the ultrasonic loudspeaker with various characteristics and to improve attenuation when it is used in a long range. This experiment measured frequency characteristic and distortion rates. The results show that the frequency characteristic of the ultrasonic loudspeaker is not flat and an SSB method have lower distortion rate than an AM method. We must improve the frequency characteristic and examine modulation methods with lower distortion rates in the future.
石川工業高等専門学校の論文