[1]顾本立,黄雷.生物组织介电特性测量[J].东南大学学报(自然科学版),1987,17(5):1-7.[doi:10.3969/j.issn.1001-0505.1987.05.001]
 Gu Benli Huang Lei (Department of Biomedical Engineering).Measurements of the Dielectric Properties of Biological Tissue[J].Journal of Southeast University (Natural Science Edition),1987,17(5):1-7.[doi:10.3969/j.issn.1001-0505.1987.05.001]
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
17
期数:
1987年第5期
页码:
1-7
栏目:
本刊信息
出版日期:
1987-09-20

文章信息/Info

Title:
Measurements of the Dielectric Properties of Biological Tissue
作者:
顾本立黄雷
南京工学院生物医学工程系; 南京工学院生物医学工程系
Author(s):
Gu Benli Huang Lei (Department of Biomedical Engineering)
关键词:
生物组织 介电特性 开端同轴线 微波网络测量
Keywords:
biological tissue dielectric property open-ended coaxial line microwave network measurement
分类号:
+
DOI:
10.3969/j.issn.1001-0505.1987.05.001
摘要:
本文论述了特别适用于测量生物活体组织介电特性的同轴线开端反射法。本方法不需要对被测物进行特殊加工,只要求一个紧密的接触面,就可极方便地进行宽频带内迅速而大量的测试,并可用于其它材料特性的测量。测试系统使用了计算机控制的网络分析仪,用 ANA 法校准以消除接头等引入的误差网络影响;用迭代法决定等效电路参数致使测试结果具有较高精度。具体的生物组织测试在0.5GHz~2GHz 内进行,将测试结果与已知结果进行比较证明方法之可靠,然后测量出死、活生物组织∈之差异,测出∈随频率、随牺牲时间的变化曲线。
Abstract:
An open-ended coaxial line reflection method especially suitable for measuring the dielectric properties of biological tissue in vivo is described. This method offers the advantage of not requiting any special preparation of the samples to be measured but a close contact with the open end of a coaxial line.It is,therefore,very convenient to acquire a large number of measure- ment data in broad band rapidly.The method may also be used to measure the properties of other substances. The measuring system consists of a network analyzer controlled by micro- computer and calibrated by using ANA procedure to eliminate the influnce of the error network introduced by the adapter,connectors etc.In order to reach higher accuracy,the iterative method is used to determine the parame- ters of the equivalent circuit.Measurements of permeativities of some living tissues have been performed in the frequency band of 0.5-2GHz.Compared with the results known in some papers,the validity of this method has been confirmed.The difference in dielectric properties between living and dead tissues and the tissue permeativities(ε)versus frequency and duration of mea- surement after death have also been measured.

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更新日期/Last Update: 2013-05-01