| 波尔共振仪相位差测量方法的改进 |
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| 引用本文： | 徐少磊,孙文光,何雨华.波尔共振仪相位差测量方法的改进[J].物理与工程,2004,14(5):36-38. |
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| 作者姓名： | 徐少磊 孙文光 何雨华 |
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| 作者单位： | 同济大学物理系,上海,200092 |
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| 摘 要： | 介绍了波尔共振仪研究机械受迫振动的幅频特性和相频特性的用途，阐述了频闪法测定相位差和利用脉冲电路改进相位差测量的方法，给出了改进方案电路方框图及各点波形图并分析了数字显示相位差的理论依据．
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| 关 键 词： | 进相 频闪 相位差测量 相频特性 幅频特性 数字显示 电路 波尔 框图 理论依据 |
IMPROVING THE MEASURING METHOD OF PHASE DIFFERENCE USING THE POHL RESONATOR |
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| Xu Shaolei Sun Wenguang He Yuhua.IMPROVING THE MEASURING METHOD OF PHASE DIFFERENCE USING THE POHL RESONATOR[J].Physics and Engineering,2004,14(5):36-38. |
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| Authors: | Xu Shaolei Sun Wenguang He Yuhua |
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| Abstract: | We introduced the application of the Pohl resonator in studying the amplitude-frequency and the phase-frequency characteristics of a forced oscillation discussed. The measuring method of phase difference with a stroboscope and the measuring method of phase difference by applying an impulse circuit, together with the block diagram of the circuit and the oscillogram for each joint. The principle of digital display of the phase difference is analyzed. |
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| Keywords: | resonator forced oscillation phase difference impulse circuit |
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