A New Technique to Estimate the Cole Model for Bio-impedance Spectroscopy with the High-Frequency Characteristics Estimation.

... International Conference on Wearable and Implantable Body Sensor Networks. International Conference on Wearable and Implantable Body Sensor Networks Pub Date : 2023-10-01 Epub Date: 2023-12-01 DOI:10.1109/bsn58485.2023.10331081

Sina Razaghi, Ebenezer Asabre, Abu Bony Amin, Yeonsik Noh

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Abstract

Bio-impedance spectroscopy (BIS) is a sophisticated testing technique used to analyze impedance changes at different frequencies. In this study, we investigated the estimation of the Cole Model for BIS measurements without the need for high-frequency resistance and reactance measurements, where they are inaccurate due to leakage capacitences. We employed a Texas Instruments evaluation kit (AFE4300) and compared the Cole plots of two different circuit models of tissue between the proposed configuration and a commercial impedance analyzer used as a reference. To enhance the performance of the AFE4300, we incorporated an external direct digital synthesis (DDS) to generate higher frequencies. The results demonstrated the reliability of the proposed theoretical estimation technique in accurately estimating the resistances and capacitance of the Cole Model.

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利用高频特性估计生物阻抗光谱学科尔模型的新技术。

生物阻抗光谱（BIS）是一种复杂的测试技术，用于分析不同频率下的阻抗变化。在本研究中，我们研究了如何利用科尔模型估算 BIS 测量值，而无需进行高频电阻和电抗测量，因为高频电阻和电抗测量会因泄漏电容而不准确。我们使用了德州仪器公司的评估套件（AFE4300），并比较了拟议配置与用作参考的商用阻抗分析仪之间两种不同组织电路模型的科尔图。为了提高 AFE4300 的性能，我们采用了外部直接数字合成 (DDS) 来产生更高的频率。结果表明，所提出的理论估算技术在准确估算科尔模型的电阻和电容方面非常可靠。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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... International Conference on Wearable and Implantable Body Sensor Networks. International Conference on Wearable and Implantable Body Sensor Networks

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