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Ultrasonics. 2017 Mar;75:1-8. doi: 10.1016/j.ultras.2016.11.008. Epub 2016 Nov 16.

A new topological structure for the Langevin-type ultrasonic transducer.

Author information

1
State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, China.
2
State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, China. Electronic address: ejhhu@nuaa.edu.cn.

Abstract

In this paper, a new topological structure for the Langevin-type ultrasonic transducer is proposed and investigated. The two cylindrical terminal blocks are conically shaped with four supporting plates each, and two cooling fins are disposed at the bottom of terminal blocks, adjacent to the piezoelectric rings. Experimental results show that it has larger vibration velocity, lower temperature rise and higher electroacoustic energy efficiency than the conventional Langevin transducer. The reasons for the phenomena can be well explained by the change of mass, heat dissipation surface and force factor of the transducer. The proposed design may effectively improve the performance of ultrasonic transducers, in terms of the working effect, energy consumption and working life.

KEYWORDS:

High-performance; Topological structure; Ultrasonic transducer

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