| 用锁相放大技术采集电子自旋共振信号 |
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| 引用本文： | 陈丽,胡永茂,李汝恒. 用锁相放大技术采集电子自旋共振信号[J]. 大学物理实验, 2010, 23(1): 16-18,25 |
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| 作者姓名： | 陈丽 胡永茂 李汝恒 |
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| 作者单位： | 大理学院,云南,大理671003;大理学院,云南,大理671003;大理学院,云南,大理671003 |
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| 摘 要： | 利用示波器通过电子顺磁共振波谱仪观察了DPPH样品中未偶电子的自旋共振信号,使用锁相放大技术采集了电子自旋共振信号的微分线,讨论了影响实验结果的因素,给出了相关的实验参数。分析发现,所采集到的微分线为典型的Guass线型,这与所使用固体试样中电子的周边环境是一致的,这从实验的角度实现了锁相放大器对电子自旋共振信号的采集。
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| 关 键 词： | 电子自旋共振 未偶电子 锁相放大技术 Guass线型 |
Gathering Electron Spin Resonance Signal with Phase-Lock Amplification Technology |
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| CHEN Li,HU Yong-mao,LI Ru-heng. Gathering Electron Spin Resonance Signal with Phase-Lock Amplification Technology[J]. Physical Experiment of College, 2010, 23(1): 16-18,25 |
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| Authors: | CHEN Li HU Yong-mao LI Ru-heng |
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| Affiliation: | CHEN Li,HU Yong-mao,LI Ru-heng (Dali University,Yunnan Dali 671003) |
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| Abstract: | Electron spin resonance signal of unpaired electrons is observed on oscilloscope through FD-ESR-II electron paramagnetic resonance spectrometer and differential curve of this signal is gathered with phase-lock amplification technology.The factors that affect the results of this experiment are discussed and the relative experiment parameters are given.After analysis this differential curve is found to be Guass pattern,in accordance with the surroundings of electrons in solid sample.Thus gathering electron sp... |
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| Keywords: | electrons spin resonance unpaired electrons phase-lock amplification technology Guass pattern |
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