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优化测量方法和系统,用于10Hz-100MHz频率范围内的活性生物组织的介电性质

Yueying Shi¹, Xiaoxiao Bai², Jingrong Yang²

¹School of Stomatology, Xi'an Medical University, Xi'an, China.

Frontiers in physiology

|February 14, 2025

概括

一个新的双重用途测量系统准确地测量了生物组织的介电性质,从10Hz到100MHz. 这克服了电极极化和分布参数的挑战,改善了疾病诊断和电磁安全.

科学领域:

生物物理学的生物物理.
电气工程电气工程
生物医学测量生物医学测量

背景情况:

生物组织的介电性质提供了对形态学和功能的洞察.
精确的测量对于疾病诊断和电磁保护至关重要.
挑战包括电极两极化和影响精度的分布参数.

研究的目的:

开发一个强大的系统来测量活性生物组织的介电性质.
解决现有测量技术在广泛频率范围内存在的局限性.
为了提高介电性质测量的精度和可重复性.

主要方法:

开发一种双重用途的测量单元,支持四电极和两电极阻抗测量.
建立一个系统和方法来测量从10Hz到100MHz的介电性质.
使用NaCl溶液和猪肝组织进行验证.

主要成果:

在测量中表现出高精度和可重复性.
对于 NaCl 溶液的最大相对偏差为 6.34% (平均值 < 1.5%).
猪肝组织的总相对偏差低于6%.

结论:

开发的系统有效地克服了电极极化和分布参数问题.
在10Hz-100MHz频谱的测量准确度得到了显著改善.
该系统非常适合测量活性生物组织的介电性质.

关键词:

10Hz-100 MHz频率范围范围的频率范围.活跃的生物组织生物组织.介电性质介电性质分布式参数的分布式参数.双重用途的测量单元.电极极化的电极极化.对测量进行校正.

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