Acoustic waves are the only carrier that humans have that can transmit information and energy over long distances in the vast ocean. On the land, people use electromagnetic waves to develop radars. Similarly, people use acoustic waves as information carriers to develop underwater targets for detecti

A sound source level estimation method based on the acoustic inverse frequency response function (IFRF) is proposed to solve the problem of poor accuracy of the assessment of the vibration and noise level of underwater acoustic equipment in shallow waters. This method represents the multi-channel tr

Analysis of target detection performance for a single vector hydrophone windowed histogram algorithm

The histogram algorithm of a single vector hydrophone has good robustness and target azimuth estimation performance. This article analyzes and summarizes the target detection performance of the histogram algorithm, and proposes an autonomous detection of underwater targets based on target azimuth es

IntroductionIn ocean exploration, through the analysis and processing of the signal received by the hydrophone, the target category of the sound source and its related angle, position and other state parameters can be obtained. However, different noises and interferences will inevitably be mixed int

Research progress of deep water transducers Deep-sea space is the new commanding heights of current maritime military competition. One of my country's marine strategic goals is to move toward deep blue. The development of deep-sea acoustic equipment promotes continuous breakthroughs in deep-water t

The underwater acoustic transducer is the main tool that uses sound waves to detect, identify and locate underwater targets, or to communicate and send reports underwater. The transducer is used to emit sound waves is called a transmitter. When the transducer is in the emitting state, it converts el

Acoustic waves are considered to be the only information carrier that can travel long distances in the ocean. Marine research, resource development, and maritime military struggles are all inseparable from underwater acoustic technology. The development of hydroacoustic technology requires various t

Objective To study the changes in the shape and geometrical position of the acoustic focal range of the concave spherical ultrasonic transducer when the sound intensity is high and the medium has a large attenuation. Methods From the perspective of physical acoustics, the effects of nonlinearity and

According to customer’ needs, we can design and produce piezoelectric ultrasonic transducers, underwater acoustic transducer ,ultrasonic probes and sensors of various frequencies with stable performance and high quality.

Low frequency, deep water, high power transducer Low-frequency transmitting transducer series: There are various types of flexural transducers, slotted circular tube transducers, slat bending transducers, combined bending disc transducers, etc. The minimum operating frequency has been as low as 20Hz

Composite vector hydrophoneIn order to improve the detection performance of passive sonar, research has developed a vector hydrophone that can receive and utilize scalar parameters (sound pressure) and vector parameters (vibration speed) in the sound field, making full use of the information in the

The core of the underwater acoustic transducer is a piezoelectric wafer in its outer casing, and there are many kinds of materials constituting the wafer. The size of the wafer, such as diameter and thickness, varies, so the performance of each probe is different and its performance must be known be