| 一种高精度模拟振荡器 |
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| 引用本文： | 吴涛,李树德,周云耀.一种高精度模拟振荡器[J].大地测量与地球动力学,2012,32(Z1):173-175. |
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| 作者姓名： | 吴涛 李树德 周云耀 |
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| 作者单位： | 中国地震局地震研究所(地震大地测量重点实验室),武汉,430071 |
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| 基金项目： | 中国地震局地震行业专项(201101014);中国地震局地震研究所所长基金(IS201126095) |
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| 摘 要： | 介绍一种利用32路开关芯片及电阻分压网络将直流信号直接转换为交流信号的方法,由于开关管的响应时间很短,因此,振荡器的频率能够达到100kHz以上.通过实验表明,该振荡电路正弦信号具有信号周期稳定、重复性高等特点,适合作为地学仪器的振荡源.
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| 关 键 词： | 模拟振荡器 高精度 带通滤波 电阻网络 信号转换 |
A HIGH ACCURACY ANALOG OSCILLATOR |
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| Wu Tao
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Li Shude
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Zhou Yunyao.A HIGH ACCURACY ANALOG OSCILLATOR[J].Journal of Geodesy and Geodynamics,2012,32(Z1):173-175. |
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| Authors: | Wu Tao Li Shude Zhou Yunyao |
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| Institution: | (Key Laboratory of Earthquake Geodesy,Institute of Seismology,CEA,WuHan 430071) |
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| Abstract: | This paper introduces a new method with which the DC signal can be directly converted to AC signal by using a 32 pathways switch chip.Because the response time of the switch chip is very short,oscillator frequency can reach more than 100 kHz.The experiment show that the oscillating circuit sine signal has characteristics of the stability of signal cycle,higher repeatability and is suitable for the oscillation source as a geological instrument. |
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| Keywords: | simulation oscillator high precision bandpass filters resistance network signal comvertion |
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