| 静电传感器微弱信号检测电路的研究 |
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| 引用本文： | 金锋,付海涛.静电传感器微弱信号检测电路的研究[J].北京理工大学学报,2010,30(11):1301-1304. |
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| 作者姓名： | 金锋 付海涛 |
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| 作者单位： | 北京理工大学自动化学院; |
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| 基金项目： | 北京理工大学基础研究基金资助项目 |
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| 摘 要： | 为解决静电传感器用于稀相气固两相流参数测量时信号微弱难以检测的问题,深入研究了静电传感器的基本原理和信号特点,设计了一种实用的高精度微弱信号检测电路.结果表明,该电路具有很高的分辨率、极低的温漂、较强的抗杂散电容干扰和外电场干扰能力,能够满足气固两相流参数测量的要求.
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| 关 键 词： | 静电传感器 气固两相流 微弱信号 高精度 检测电路 |
| 收稿时间： | 2009/6/11 0:00:00 |
Weak Signal Detection Circuit of Electrostatic Sensors |
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| JIN Feng and FU Hai-tao.Weak Signal Detection Circuit of Electrostatic Sensors[J].Journal of Beijing Institute of Technology(Natural Science Edition),2010,30(11):1301-1304. |
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| Authors: | JIN Feng and FU Hai-tao |
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| Institution: | JIN Feng,FU Hai-tao(School of Automation,Beijing Institute of Technology,Beijing 100081,China) |
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| Abstract: | It's difficult to detect the weak signal of electrostatic sensor which is used to measure the parameters of dilute gas-solid two phase flow.To solve this problem,based on the analysis of basic principle and signal characteristic of electrostatic sensor,a weak signal detection circuit with high-resolution was developed.The result indicates that the circuit has a very high resolution,extremely low temperature drift and strong anti-jamming ability towards stray capacity and external electric field.The given ci... |
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| Keywords: | electrostatic sensor gas-solid two phase flow weak signal high resolution detection circuit |
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