金属粉尘浓度检测技术研究

基金项目:

国家重点研发计划资助项目（2016YFC0801703）

国家自然科学基金资助项目（U1261205）

详细信息

Research of detection technology of metal dust concentratio

1.
Chongqing Motian Environmental Protection Engineering Co., Ltd., Chongqing 400020, China
2.
CCTEG Chongqing Research Institute Co., Ltd., Chongqing 400037, China

摘要: 针对称重法无法实现金属粉尘浓度的实时、在线检测问题，分析了光散射法和电荷感应法应用于金属粉尘浓度检测技术的基本原理，设计了基于光散射法和基于电荷感应法的金属粉尘浓度信号采集及处理电路。实验结果表明：在检测初期，光散射法和电荷感应法检测误差均较小；但在长时间连续检测后，光散射法检测误差增大且检测值均偏高，而电荷感应法检测精度仍较高。
- 金属粉尘浓度 /
- 电荷感应法 /
- 光散射法
Abstract: For problem that weighing method cannot realize real-time and on-line detection for metal dust concentration, basic principle of light scattering method and charge induction method for metal dust concentration detection were analyzed, and signal acquisition and processing circuits for metal dust concentration detection were designed which were respectively based on light scattering method and charge induction method. The experimental results show that errors of light scattering method and charge induction method are small in early detection. Error of light scattering method increases and detection value is higher than standard reference value after long-time continuous detection, while detection accuracy of charge induction method is still high.
- metal dust concentration /
- charge induction method /
- light scattering method

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