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相互正交的声场、电场和磁场作用于生物组织的耦合方程 预览 被引量:1

Coupling equation of orthogonal sound field, electric field and magnetic field in biological tissue
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摘要 一种基于声场、电场和磁场相互正交耦合作用的新方法为生物电流检测和医学功能成像提供了新的思路.本文从原理上对这种方法的本质机理加以阐述,指出在各种场间主要是通过洛仑兹力作用而发生能量耦合,耦合所产生的声或电的信号中包含有组织的电特性信息,由此信息可对组织进行电生理检测和成像.文中从连续介质力学的基本方程出发,在分别把生物组织视为弹性固体和流体情况下,归纳和推导了在音频段和超声频段相互正交的声场、电场和磁场间耦合方程.这些方程是进行生物电流检测和组织功能成像的理论基础. A novel method based on the coupling effect of orthogonal sound field- electric field and magnetic field is used for the bioelectric currents detecting and the function imaging of tissue. This paper expatiates the novel method's theory that the Lorentz forces induce the coupling effect in different field. The coupling effect produces the sound or electrical signals included electrical characteristic information of the biological tissue. According to the basic equation of continuum medium mechanics- this paper concludes the coupling equation of orthogonal sound field- electric field and magnetic field in sonic frequency and ultrasonic frequency. These equations are the base of the bioelectric currents detecting and the function imaging of tissue.
作者 刘军 李光 陈裕泉 LIU Jun- LI Guang- CHEN Yu-quan(Dept of Biomedical Engineering- Biosensors National Special Lab- Zhejiang University- Hangzhou 310027- China)
机构地区 浙江大学
出处 《中国医学物理学杂志》 CSCD 2003年第4期 284-286,共3页 Chinese Journal of Medical Physics
关键词 生物电流检测 生物组织功能成像 洛仑兹力 耦合方程 bioelectric detecting tissue function imaging lorntz force coupling equation
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参考文献5

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