| 基于锁相同步检测的数字化阻抗测试方法 |
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| 引用本文： | 秦开宇,古天祥.基于锁相同步检测的数字化阻抗测试方法[J].电讯技术,1998,38(5):31-35,75. |
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| 作者姓名： | 秦开宇 古天祥 |
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| 作者单位： | 电子科技大学 |
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| 摘 要： | 介绍了一种数字化阻抗测试方法，它采用锁相同步采样、数字化矢量电压电流比法及校准技术测试元器件或线路阻抗。同时介绍了相应实验电路原理，并结合线路接口，进行了通信电缆的线路阻抗测试实验。
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| 关 键 词： | 电路 器件 阻抗测量 锁相环 矢量电压电流比 |
A Digital Impedance Measurement Approach Based on Phase-Locked Synchronous Detection |
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| Qin Kaiyu,Gu Tianxiang,Chen Guangju.A Digital Impedance Measurement Approach Based on Phase-Locked Synchronous Detection[J].Telecommunication Engineering,1998,38(5):31-35,75. |
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| Authors: | Qin Kaiyu Gu Tianxiang Chen Guangju |
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| Affiliation: | Dept. of Automation.University of Electronic Science and Technology of China |
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| Abstract: | A new digital impedance measurement approach is described in this paper.The approach is immune to the offset error of the excitation source and the measurement circuit. By means of automatic calibration, phase-locked loop-based synchronous sampling, digital phase-demodulation and vector voltage-current ratio technology, the accurate measurement results can be obtained in a wide range. |
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| Keywords: | Circuit and Device Impedance Measurement Vector voltage-current ratio Phase-Locked Loop |
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