TY - GEN
T1 - Directivity Analysis of Ultrasonic Array in Directional Sound System
AU - Peng, Zhao
AU - Long, Zhili
AU - Ma, Zhexuan
N1 - Publisher Copyright:
© 2021, Springer Nature Switzerland AG.
PY - 2021
Y1 - 2021
N2 - Sound wave, as an important component in daily life, has the characteristic of 360° propagation, which is difficult to propagate in a fixed area, resulting in noise pollution and other problems. Directional sound system can deal with the problem. It modulates the low-frequency signal linearly to the ultrasonic signal, transmits the signal to the air through ultrasonic array, and demodulates itself in the air. Due to the narrow beam of the ultrasonic wave, directional propagation of the sound is realized. For this technology, directivity is an important parameter, which is related to the characteristics and scale of the ultrasonic array. The existing micro array research mostly uses simulation to explore its directivity law but lacks corresponding experiments. In this paper, the PZT transducer is used to build a directivity test platform for experimental exploration. The experimental results show that 8 × 8 array is an optimal choice for plane parallel arrangement, and the 3D concave array is proved to be applicable in directional sound system.
AB - Sound wave, as an important component in daily life, has the characteristic of 360° propagation, which is difficult to propagate in a fixed area, resulting in noise pollution and other problems. Directional sound system can deal with the problem. It modulates the low-frequency signal linearly to the ultrasonic signal, transmits the signal to the air through ultrasonic array, and demodulates itself in the air. Due to the narrow beam of the ultrasonic wave, directional propagation of the sound is realized. For this technology, directivity is an important parameter, which is related to the characteristics and scale of the ultrasonic array. The existing micro array research mostly uses simulation to explore its directivity law but lacks corresponding experiments. In this paper, the PZT transducer is used to build a directivity test platform for experimental exploration. The experimental results show that 8 × 8 array is an optimal choice for plane parallel arrangement, and the 3D concave array is proved to be applicable in directional sound system.
KW - Directional sound system
KW - Directivity
KW - Piezoceramic transducer
KW - Ultrasonic array
UR - https://www.scopus.com/pages/publications/85118211060
U2 - 10.1007/978-3-030-89095-7_15
DO - 10.1007/978-3-030-89095-7_15
M3 - 会议稿件
AN - SCOPUS:85118211060
SN - 9783030890940
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 149
EP - 157
BT - Intelligent Robotics and Applications - 14th International Conference, ICIRA 2021, Proceedings
A2 - Liu, Xin-Jun
A2 - Nie, Zhenguo
A2 - Yu, Jingjun
A2 - Xie, Fugui
A2 - Song, Rui
PB - Springer Science and Business Media Deutschland GmbH
T2 - 14th International Conference on Intelligent Robotics and Applications, ICIRA 2021
Y2 - 22 October 2021 through 25 October 2021
ER -