An eccentric cylindrical cantilever transmitting transducer

作者：Liu Yong Ping^*; Mo Xi Ping; Chai Yong; Cui Zheng

来源：Journal of Harbin Engineering University, 2010, 31(7): 842-847.

DOI：10.3969/j.issn.1006-7043.2010.07.005

• Cantilever structures
• Characteristic frequencies
• Cylindrical cantilever
• Eccentric
• FEM
• Finite element analysis
• Fundamental design
• Low frequency
• Multimodes
• Performance parameters
• Realizability
• Transmitting transducer
• Transmitting voltage response
• Vibrating modes
• Working frequency

A new type of transducer with an eccentric cylindrical cantilever structure was designed in order to create an improved broadband transmitting transducer. The fundamental design concept combined the advantages of the low frequency flexural vibrating mode and the multi-mode coupling technique to broaden the working bandwidth. Then its major performance parameters, such as vibrating mode, characteristic frequency, impedance and transmitting voltage response were studied by finite-element analysis and the prototype transducer was fabricated and tested. The results showed that the working frequency covers 2 octaves, ranging from 4 kHz to 16 kHz, with the transmitting voltage response fluctuating less than -5 dB, proving the correctness and realizability of the design.

• 出版日期2010