| 基于锁相放大技术检测VRLA电池的内阻 |
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| 引用本文： | 汤秀芬,魏凤兰.基于锁相放大技术检测VRLA电池的内阻[J].电池,2009,39(1). |
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| 作者姓名： | 汤秀芬 魏凤兰 |
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| 作者单位： | 1. 宁夏大学物理电气信息学院,宁夏,银川,750021
2. 北方民族大学成人教育中心,宁夏,银川,750021 |
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| 摘 要： | 分析了阀控式铅酸(VRLA)电池内阻的测试方法,介绍了采用交流比例法在线测量电池内阻装置的原理.介绍了采用锁相放大技术实现内阻测量的实际电路.该装置通过采用平衡调制解调芯片AD630,既简化了设计,抑制了干扰和噪声,又可以精确测量VRLA电池的内阻.
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| 关 键 词： | 阀控式铅酸(VRLA)电池 内阻 锁相放大 交流比例法 |
Detecting internal resistance of VRLA battery based on phase-lock amplifier |
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| TANG Xiu-fen,WEI Feng-lan.Detecting internal resistance of VRLA battery based on phase-lock amplifier[J].Battery Bimonthly,2009,39(1). |
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| Authors: | TANG Xiu-fen WEI Feng-lan |
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| Affiliation: | 1.School of Physics and Electronics Information Engineering;Ningxia University;Yinchuan;Ningxia 750021;China;2.The Center of Adult Education;North University for Minorities;China |
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| Abstract: | Detecting methods of the internal resistance of valve regulated lead-acid(VRLA) battery were analyzed;the principle of on-line detecting battery internal resistance by AC proportion method was introduced.The circuit using phase-lock amplifier technic to detect the internal resistance was introduced.By using balanced modulator/demodulator AD630,the device simplified the design,suppressed the interference and noise,could accurately measure the internal resistance of the VRLA battery. |
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