PSpice Modelling of an Ultrasonic Setup for Materials Characterization

Aouzale, N.; Chitnalah, Ahmed; Jakjoud, Hicham; Kourtiche, Djilali

doi:10.1080/00150190802382058

Cited by 5 publications

(3 citation statements)

References 3 publications

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“…It is suitable for the simulation of multi-layer structure (Van Deventer and Lofqvist, 2000;Kim et al, 2020). BVD (Butterworth-Van Dyke) model is the simplest model (Aouzale et al, 2008;Kim et al, 2020;Zhou et al, 2020), which only needs four common components to realize the transducer simulation, and the implementation of multi-frequency BVD model is also very simple. In 1994, Leach proposed to replace the frequencydependent transformer in Mason's model with a controllable current source and a controllable voltage source to simulate the transducer, and achieved good results (Leach, 1994).…”

Section: Introductionmentioning

confidence: 99%

“…BVD model is not suitable for high frequency transducer performance from material parameters. Leach model is widely used, but most of the applications lack the modeling of matching layer, backing layer and cable (Van Deventer and Lofqvist, 2000;Johansson and Martinsson, 2001;Roa-Prada et al, 2007;Aouzale et al, 2008;Chahal and Reddy, 2013;Tarpara and Patankar, 2018;Takahashi et al, 2019;Zheng et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

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An Improved Equivalent Circuit Simulation of High Frequency Ultrasound Transducer

Shen

et al. 2021

Front. Mater.

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The equivalent circuit simulation plays an important role in the design of ultrasound transducer. However, the existing methods are difficult to achieve the effect of matching and backing layer, and not able to accurately simulate the transducer with cable. Especially in the application of high frequency ultrasound, the long cable has a great influence on the performance of the transducer. To overcome these limitations, this paper proposed an improved equivalent circuit method, which combined Leach model and transmission line model. It can realize the complete simulation of ultrasound transducer with a long cable, matching layer, and backing layer in PSPICE circuit simulation software when the parameters were measured. Its principles were briefly introduced, and ultrasound transducers with different frequencies (12 and 20 MHz), different matching layers, and different cable lengths (0.5–2.5 m) were designed and fabricated to verify the effectiveness of the method, which is also compared with the traditional KLM method using PiezoCAD. The experiment results showed that the long cable, matching layer, and backing layer have a significant impact on the performance of high frequency ultrasound transducers, and this proposed method has good agreement with these results. Moreover, for the simulation of the complete transducer, the effect of this method is better than KLM model. Besides, this method does not need to know the specific equivalent circuit of matching, backing layer, or cable wire, it can accurately predict the impedance and phase of the transducer through the material parameters, which is very helpful for the material selection and optimization of subsequent transducer design and fabrication. The study indicates that this improved equivalent circuit method is suitable to be applied in the general circuit simulation software and provides strong support for the high frequency transducer and system design.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An Improved Equivalent Circuit Simulation of High Frequency Ultrasound Transducer

Shen

et al. 2021

Front. Mater.

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“…In our previous work [12], we used the SPICE model of the transducer and the line transmission to characterize some materials by measuring their acoustical properties. The use of the transmission line model restricts the measurement to near field to ignore the diffraction effects.…”

Section: Introductionmentioning

confidence: 99%

Experimental Validation of SPICE Modeling Diffraction Effects in a Pulse–Echo Ultrasonic System

Aouzale¹,

Chitnalah²,

Jakjoud³

2009

IEEE Trans. Circuits Syst. II

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During its propagation in a given medium, the ultrasonic wave is disturbed by several phenomena that affect the waveform in both time and frequency domains. Among these phenomena, the most important are absorption, nonlinearity, and diffraction. The aim of this brief is to simulate in the SPICE-like simulator the diffraction losses in a pulse-echo ultrasonic system. A set of Gaussian beams is used to simulate the radiated field, allowing us to analytically deduce the exact diffraction losses instead of experimentally measuring them. This permits us to avoid errors due to experiments and waste of time. Our study is made for both focused and unfocused sources in three different media, namely, distilled water, glycerol, and methanol. To prove the validity of the SPICE model, a comparison is made between simulation and measurements, and the results show satisfactory agreement.

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