### Abstract

In this paper, an electrical equivalent circuit of a loaded thick Langevin flexural transducer is proposed. As there are two vibration components at the mechanical output terminal of a thick flexural transducer, that is, lateral and rotational components. A load, corresponding to each vibration component, applied to the transducer must also be considered separately. When it is assumed that the load is fluid and that the mechanical output port is the end surface of the flexural transducer, the rotary motion of the end surface only contributes to sound radiation into fluid. An analytical solution of Timoshenko's beam theory given by Miklowitz and the piezoelectric equation are applied to calculate the free vibration mode and the electrical equivalent components of transducer. Using this derived equivalent circuit, the behavior of the loaded flexural transducer is experimentally studied to prove the validity of the proposed circuit.

Original language | English |
---|---|

Pages (from-to) | 3121-3125 |

Number of pages | 5 |

Journal | Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers |

Volume | 36 |

Issue number | 5 SUPPL. B |

Publication status | Published - 1997 May |

Externally published | Yes |

### Fingerprint

### Keywords

- Equivalent circuit
- Flexural mode
- Langevin transducer
- Piezoelectric element
- Radiation impedance

### ASJC Scopus subject areas

- Physics and Astronomy (miscellaneous)
- Engineering(all)

### Cite this

*Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers*,

*36*(5 SUPPL. B), 3121-3125.

**Electrical equivalent circuit of loaded thick langevin flexural transducer.** / Koike, Yoshikazu; Tamura, Takeshi; Ueha, Sadayuki.

Research output: Contribution to journal › Article

*Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers*, vol. 36, no. 5 SUPPL. B, pp. 3121-3125.

}

TY - JOUR

T1 - Electrical equivalent circuit of loaded thick langevin flexural transducer

AU - Koike, Yoshikazu

AU - Tamura, Takeshi

AU - Ueha, Sadayuki

PY - 1997/5

Y1 - 1997/5

N2 - In this paper, an electrical equivalent circuit of a loaded thick Langevin flexural transducer is proposed. As there are two vibration components at the mechanical output terminal of a thick flexural transducer, that is, lateral and rotational components. A load, corresponding to each vibration component, applied to the transducer must also be considered separately. When it is assumed that the load is fluid and that the mechanical output port is the end surface of the flexural transducer, the rotary motion of the end surface only contributes to sound radiation into fluid. An analytical solution of Timoshenko's beam theory given by Miklowitz and the piezoelectric equation are applied to calculate the free vibration mode and the electrical equivalent components of transducer. Using this derived equivalent circuit, the behavior of the loaded flexural transducer is experimentally studied to prove the validity of the proposed circuit.

AB - In this paper, an electrical equivalent circuit of a loaded thick Langevin flexural transducer is proposed. As there are two vibration components at the mechanical output terminal of a thick flexural transducer, that is, lateral and rotational components. A load, corresponding to each vibration component, applied to the transducer must also be considered separately. When it is assumed that the load is fluid and that the mechanical output port is the end surface of the flexural transducer, the rotary motion of the end surface only contributes to sound radiation into fluid. An analytical solution of Timoshenko's beam theory given by Miklowitz and the piezoelectric equation are applied to calculate the free vibration mode and the electrical equivalent components of transducer. Using this derived equivalent circuit, the behavior of the loaded flexural transducer is experimentally studied to prove the validity of the proposed circuit.

KW - Equivalent circuit

KW - Flexural mode

KW - Langevin transducer

KW - Piezoelectric element

KW - Radiation impedance

UR - http://www.scopus.com/inward/record.url?scp=0031142541&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031142541&partnerID=8YFLogxK

M3 - Article

VL - 36

SP - 3121

EP - 3125

JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

SN - 0021-4922

IS - 5 SUPPL. B

ER -