Research on Low Frequency Broadband Hybrid Transducers for Underwater Applications

2023-03-29 03:14:41 By : Ms. Selena wong
Transducer, Broadband, Underwater, Piezoelectric, Magnetostrictive, Miniaturization, Coupled Multimode Vibrations.

The development of underwater transducers has always been a challenging task due to various factors such as operating frequency, bandwidth, and size. Researchers have been continuously exploring ways to improve the performance of underwater transducers by investigating different techniques.
Research on the Low Frequency Broadband Piezoelectric-Magnetostrictive Hybrid Transducer


One such technique is the Low Frequency Hybrid Transducer, which is designed to lower its operating frequency, to broaden its bandwidth, and to develop its miniaturization. The transducer is composed of a zigzag piezoelectric section and a one-dimensional magnetostrictive section. The low-frequency vibrations are controlled by the zigzag piezoelectric section, while the high-frequency vibrations are controlled by the one-dimensional magnetostrictive section.

To investigate the effectiveness of the Low Frequency Hybrid Transducer, researchers built equivalent circuit models and finite element models to predict its performance. The analysis showed that the finite element model was suitable for analyzing the transducer within a 5% deviation. The corresponding tests showed that the volume and weight of the Hybrid transducer underwent a significant reduction after the improvements, making it more effective for underwater operations.

The prototype of the Low Frequency Hybrid Transducer has a resonance at 1.82 kHz and 3.76 kHz, and it can be effectively used within the bandwidth of 1.5 kHz to 5 kHz. Its main body has an external diameter of 54 mm, and the entire prototype is 235 mm long and weighs 2.61 kg.

The Low Frequency Hybrid Transducer is a technological breakthrough, and it has distinct advantages in low frequency, bandwidth, and miniaturization. Its unique design allows it to be effective for underwater operations, and it offers superior performance compared to traditional hybrid transducers.

In conclusion, the Low Frequency Hybrid Transducer is a perfect solution for various underwater operations. Its innovative design, along with its advantages in low frequency, bandwidth, and miniaturization, offers superior performance and is set to revolutionize underwater transducer technology.