| 抑制共模干扰新方法及在阻抗成象数据采集中应用 |
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| 引用本文： | 赵新建,叶新宇. 抑制共模干扰新方法及在阻抗成象数据采集中应用[J]. 电子测量技术, 1997, 0(1) |
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| 作者姓名： | 赵新建 叶新宇 |
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| 作者单位： | 浙江工业大学，浙江工业大学 |
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| 摘 要： | 本文介绍一种利用精密模拟开关组的共模干扰抑制方法。应用这种技术,阻抗成象数据采集系统在差分增益为1000时,对50kHz的同频共模干扰的共模抑制比CMRR为118dB。
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| 关 键 词： | 共模抑制比 测量系统 阻抗成象 |
A New Method to Reduce Common-mode Interference and its Application in Electrical Impedance Tomography Data Acquisition System |
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| Zhao Xinjian Ye Xinyu. A New Method to Reduce Common-mode Interference and its Application in Electrical Impedance Tomography Data Acquisition System[J]. Electronic Measurement Technology, 1997, 0(1) |
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| Authors: | Zhao Xinjian Ye Xinyu |
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| Affiliation: | Zhao Xinjian Ye Xinyu |
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| Abstract: | A new common-mode interference reduction method which uses a group of precision analog switches is presented in the paper. With the technique, the CMRR of an electrical impedance tomography (EIT) data acquisition system would be 118dB,when the differential gain of the system is 1000 and the measurement frequency is 50kHz. |
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| Keywords: | CMRR Measurement system Electrical impedance tomography |
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