SPATIAL-RESOLUTION OF 4 ELECTRODE ARRAY
SPATIAL-RESOLUTION OF 4 ELECTRODE ARRAY
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DOI：
10.1109/tbme.1979.326572
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发表时间：
1979-01-01
影响因子：
4.6
通讯作者：
POUSSART, D
中科院分区：
文献类型：
--
作者：
ROBILLARD, PN;POUSSART, D
动物脑组织比阻抗的在体测量涉及多个技术环节。最严格的困难涉及电极极化和测量系统的空间分辨率。通过使用在电势电极上具有非常高阻抗的4电极布置来解决极化。根据空间分辨率讨论了4个电极的各种可能的线性配置的相对有效性。相对于相应的实验的计算空间分辨率的精度指定。
The in vivo measurement of specific impedance in animal brain tissue involves several technical aspects. The most stringent difficulties relate to electrode polarization and spatial resolution of the measuring system. The polarization is solved by using a 4 electrode arrangement with a very high impedance preamplifier on the potential electrodes. The relative effectiveness of the various possible linear configurations of 4 electrodes was discussed in terms of spatial resolution. The accuracy of computed spatial resolution with respect to corresponding experimental ones is specified.