| 锁定放大器原理及应用实验的教学探讨 |
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| 引用本文： | 王鑫,孙明,张恩杰,岳慧.锁定放大器原理及应用实验的教学探讨[J].物理实验,2002,22(1):41-43. |
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| 作者姓名： | 王鑫 孙明 张恩杰 岳慧 |
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| 作者单位： | 1. 东北师范大学物理系,长春,130024
2. 白城师范学院物理系,吉林,白城,137000 |
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| 基金项目： | 教育部高等教育面向 2 1世纪教学内容和课程体系改革计划资助项目 (JS16 1B) |
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| 摘 要： | 提出了锁定放大器原理实验应以掌握相关检测原理为重点，以观察、分析相敏检波器的相位特性为主要内容的建议，阐述了应用实验内容的选取原则，并设计了两个应用实验方案。
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| 关 键 词： | 微弱信号检测 锁定放大器 相关器 相敏检波 开环增益 检测原理 实验教学 |
| 文章编号： | 1005-4642(2002)01-0041-03 |
| 修稿时间： | 2001年7月30日 |
Discussion about the theory and application experiments of lock-in amplifier |
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| WANG Xin,SUN Ming,ZHANG En-jie,YUE Hui.Discussion about the theory and application experiments of lock-in amplifier[J].Physics Experimentation,2002,22(1):41-43. |
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| Authors: | WANG Xin SUN Ming ZHANG En-jie YUE Hui |
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| Institution: | WANG Xin 1) SUN Ming 1) ZHANG En-jie 2) YUE Hui 1) |
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| Abstract: | This paper mainly discusses lock-in amplifier theory and how to choose the didactical content of its application experiments. It presents that theory experiments should stress on grasping correlation detection theory, and should take observing and analyzing the phase trait of phase-sensitive detector as its main content. It expatiates on the choosing principle of application experiments' content and designs two schemes of application experiments. |
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| Keywords: | weak signal detection lock-in amplifier correlator phase-sensitive detection open loop gain |
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