中圖分類號：TB5 文獻標志碼：A DOI: 10.16157/j.issn.0258-7998.245407
中文引用格式： 孟燕雨，羅明. 速度型水聲傳感器的頻率響應特性[J]. 電子技術應用，2024，50(12)：65-69.
英文引用格式： Meng Yanyu，Luo Ming. Frequency response characteristics of velocity type underwater acoustic sensor[J]. Application of Electronic Technique，2024，50(12)：65-69.

Frequency response characteristics of velocity type underwater acoustic sensor

Abstract： Sonar technology is the main method of the ocean exploration, and underwater acoustic sensor is an important part of sonar equipment. Underwater acoustic sensors are divided into scalar and vector underwater acoustic sensors. The vector sensor can make up for the incomplete sound field information obtained by the scalar sensor, and can accurately measure the sound pressure in water and the vibration velocity to determine the target orientation, etc. This paper mainly studies the frequency response characteristics of velocity vector underwater acoustic sensor, discusses the amplitude model, response ratio and frequency response characteristics of velocity type underwater acoustic sensor under high fidelity and high gain, puts forward the design principles of frequency response, and finally summarizes the application of velocity underwater acoustic sensor. Underwater acoustic sensor is an important means of underwater detection, positioning and communication. The research helps to the development of velocity acoustic sensors with high sensitivity and better low frequency characteristics, so as to greatly improve the operating range of traditional acoustic sensors. The development of far-sound-field sensor helps to improve the detection range of underwater targets such as submarines and UUV, which will fundamentally change the pattern of China's underwater acoustic detection network with important military significance.

Key words : velocity type underwater acoustic sensor；amplitude model；response ratio；frequency response