TY - JOUR

T1 - Derivation of a force factor equation for a langevin-type flexural mode transducer

AU - Koike, Yoshikazu

AU - Tamura, Takeshi

AU - Ueha, Sadayuki

PY - 1996/1/1

Y1 - 1996/1/1

N2 - We propose a calculation method for the force factor of a Langevin-type flexural mode transducer. In this proposed method, after calculating the flexural vibration mode and the resonance frequency using the analytical solution given by Miklowitz for the Timoshenko beam theory, the force factor is calculated by substituting the obtained vibration distribution into the piezoelectric equation. In the calculation of vibration distribution, piezoelectric elements bound by metal blocks are considered using the matrix expression of the Miklowitz solutions. Differences between calculation results and measurements are within 35% for several bonded transducers. Therefore, this calculation method is useful for the design of Langevin-type flexural mode transducers.

AB - We propose a calculation method for the force factor of a Langevin-type flexural mode transducer. In this proposed method, after calculating the flexural vibration mode and the resonance frequency using the analytical solution given by Miklowitz for the Timoshenko beam theory, the force factor is calculated by substituting the obtained vibration distribution into the piezoelectric equation. In the calculation of vibration distribution, piezoelectric elements bound by metal blocks are considered using the matrix expression of the Miklowitz solutions. Differences between calculation results and measurements are within 35% for several bonded transducers. Therefore, this calculation method is useful for the design of Langevin-type flexural mode transducers.

KW - Flexural mode

KW - Force factor

KW - Langevin-type transducer

KW - Piezoelectric equation

KW - Timoshenko beam theory

UR - http://www.scopus.com/inward/record.url?scp=0030149326&partnerID=8YFLogxK

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U2 - 10.1143/jjap.35.3274

DO - 10.1143/jjap.35.3274

M3 - Article

AN - SCOPUS:0030149326

VL - 35

SP - 3274

EP - 3280

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 B

ER -