| 一种通用式四探头阻抗测量系统的设计 |
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| 引用本文： | 沈永东,胥飞,张元熙.一种通用式四探头阻抗测量系统的设计[J].上海电机学院学报,2014(6):338-342. |
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| 作者姓名： | 沈永东 胥飞 张元熙 |
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| 作者单位： | 上海电机学院电气学院,上海200240 |
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| 摘 要： | 针对传统阻抗分析仪的弊端，设计了一种通用式四探头结构的阻抗测量系统。该系统前端采用四探头结构，与前端放大电路、主测量电路、通讯显示与控制部分组成整个测量系统。主电路使用模数混合式自动平衡电桥、正交电压调节系统、正交电压解调系统，使系统测量快速、准确。该系统适用于各种固体、液体材料的阻抗测量。
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| 关 键 词： | 阻抗测量 四探头 自动平衡电桥 |
Design of a Universal Impedance Measurement System with Four Probes |
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| SHENYongdong,XUFei,ZHANGYuanxi.Design of a Universal Impedance Measurement System with Four Probes[J].JOurnal of Shanghai Dianji University,2014(6):338-342. |
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| Authors: | SHENYongdong XUFei ZHANGYuanxi |
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| Affiliation: | (School of Electrical Engineering, Shanghai Dianji University, Shanghai 200240, China) |
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| Abstract: | To overcome the defects of conventional universal impedance measure instruments, this paper introduces a universal impedance measurement system with four probes.The system’s front structure uses four probes.Besides,the system includes a front amplifier circuit,a main measurement circuit,a communication unit,a display,and a control unit.With an analog digital mixed balance bridge,a quadrature voltage modulation system,and a quadrature voltage demodu-lation system,the main measurement circuit ensures rapid and accurate measurement of the sys-tem.The system is suitable for measuring almost all kinds of solids and liquids. |
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| Keywords: | impedance measurement four probe automatic balance bridge |
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