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首页> 外文期刊>IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control >Multiresonance design of a Tonpilz transducer using the finiteelement method
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Multiresonance design of a Tonpilz transducer using the finiteelement method

机译：基于有限元方法的Tonpilz换能器的多共振设计

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摘要

The design and characterization of a wide bandwidth Tonpilzntransducer is carried out using the finite element method. This widenbandwidth has been achieved by introducing a symmetric flexuralnresonance (sometimes called a “flapping” resonance) in thenhead-piece of the Tonpilz transducer. This flexural resonance isnexploited by lip-mounting of the transducer as opposed to the morentraditional nodal mount. Each transducer is characterized by high-powernhandling, high-electroacoustic efficiency, broad bandwidth (low-Q), andnhigh-electromechanical coupling. These are characteristics which arenusually associated with designs employing more complicated electrical ornmechanical matching techniques. An array of these transducers wasnconstructed and displays low-ripple (<3 dB) transmission ofnone-octave 20-40 kHz signals. A comparison with a recent broad-bandndesign by Inoue et al. [1993] which uses a matching plate is also madento illustrate the inherent simplicity of the flexural resonance approach
机译：宽带Tonpilzn传感器的设计和特性描述是使用有限元方法进行的。通过在Tonpilz换能器的耳机中引入对称的挠曲共振（有时称为“拍打”共振）来实现这种较宽的带宽。与更传统的节点安装相反，这种弯曲共振是通过换能器的唇形安装来实现的。每个换能器都具有高功率处理，高电声效率，宽带宽（低Q）和高机电耦合的特点。这些特征通常与采用更复杂的电气或机械匹配技术的设计相关。这些换能器的阵列未构建，并且显示了无倍频程20-40 kHz信号的低纹波（<3 dB）传输。与Inoue等人最近的宽带设计的比较。 [1993]也使用了一块匹配板来说明挠曲共振方法的内在简单性

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