期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
针对低含水量的润滑油含水量检测研究 被引量:1
1
作者 张勇 叶诗洋 《仪表技术与传感器》 CSCD 北大核心 2023年第7期117-121,126,共6页
设计了一种新型的润滑油含水量检测传感器,在油水流型理论和传统电容法的基础上,提出了多孔式同轴双筒电容传感器的测量方法。利用电磁学相关理论对多孔式结构电容进行分析,同时对极板间距和厚度、流通孔的直径和分布等因素对电容值的... 设计了一种新型的润滑油含水量检测传感器,在油水流型理论和传统电容法的基础上,提出了多孔式同轴双筒电容传感器的测量方法。利用电磁学相关理论对多孔式结构电容进行分析,同时对极板间距和厚度、流通孔的直径和分布等因素对电容值的影响进行研究,优化了传感器的结构。并通过仿真分析得出了对数相对介电常数模型在低含水量下的精确度最高的结论。设计了相关检测系统,搭建试验台,通过试验验证了该传感器的准确性以及可行性。结果显示1%~5%含水量测量值相对误差在0.441%~8.889%,可以对5%以下含水量的油液进行有效区分,具有一定的应用前景。 展开更多
关键词 润滑油 低含水量 传感器 阻抗电容法
下载PDF
Electropolymerization of Ni(salen) on carbon nanotube carrier as a capacitive material by pulse potentiostatic method 被引量:1
2
作者 LI JianLing GAO Fei +4 位作者 ZHANG YaKun KANG FeiYu WANG XinDong YE Feng YANG Jun 《Science China Chemistry》 SCIE EI CAS 2012年第7期1338-1344,共7页
The composites of poly[Ni(salen)] and multi-walled carbon nanotube (MWCNT) were synthesized by pulse potentiostatic method. The composites were characterized by field emission scanning electron microscopy, Fourier... The composites of poly[Ni(salen)] and multi-walled carbon nanotube (MWCNT) were synthesized by pulse potentiostatic method. The composites were characterized by field emission scanning electron microscopy, Fourier transform infrared spectra, and electrochemical impedance spectroscopy. The wrapping of carbon nanotubes with poly[Ni(salen)] varied significantly with anodic pulse duration. Variance of structure of poly[Ni(salen)] caused by anodic pulse duration affected the ability of absorption to solvent molecules or solvated ions, which was indicated by v (C≡N) intensity. The ability to store/release charge of poly[Ni(salen)] caused by redox switching was evaluated in the form of low-frequency capacitance. Correlations of chargetransfer resistance/ionic diffusion resistance with potential and anodic pulse duration were investigated. 展开更多
关键词 poly[Ni(salen)] carbon nanotubes potential pulse electrochemical impedance spectroscopy
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部