双通道差分式阻抗谱检测技术及仪器研究
[Abstract]:The purpose of impedance spectrum detection is to obtain the weak information of dielectric difference between different substances or the information of dielectric change of the same substance, and to analyze their composition, structure and variation characteristics. The conventional single-channel impedance spectroscopy technique is easy to detect the difference and variation information between materials by the substrate signals such as sensors and sample systems. In this paper, a two-channel differential impedance spectrum measurement technique based on AD5933 impedance conversion chip is proposed, and the instrument is developed in the frequency range of 1 ~ 91 kHz. The sensitivity of double channel differential detection and single channel detection with base signal of 200400 MV and 1000 MV of response signal increase of 0 ~ 100mV were compared and analyzed, and the gasoline and diesel oil were investigated when the peak value of excitation peak was 18 V. Seven samples of jet fuel and lubricating oil were compared with air and jet fuel in single channel. The results show that the detection sensitivity decreases with the increase of the base signal, and the sensitivity of the dual channel differential detection technique is 1 ~ 2 orders of magnitude of the single channel detection, and is not affected by the base signal. The sensitivity of differential detection using jet fuel as reference is 510 times and 9 ~ 12 times as much as that of air and single channel detection, respectively. It is proved that the reference sample can be reasonably selected. Dual channel differential detection can greatly improve the sensitivity of impedance detection.
【作者单位】: 后勤工程学院油料应用与管理工程系;成都军区联勤部油料监督处;
【基金】:国家自然科学基金青年基金(No.21205136) 重庆市应用基础与前沿研究(一般)项目(No.cstc2014jcyjA 0592) 重庆市研究生科研创新项目(No.CYB14101)资助~~
【分类号】:O657.1
【相似文献】
相关期刊论文 前10条
1 罗江龙;夏晨;;自组装双硫醇分子膜阻抗谱的研究(英文)[J];Chinese Journal of Chemical Physics;2006年06期
2 高运明,郭兴敏,周国治;利用阻抗谱测定氧化锆试样的电导率[J];武汉科技大学学报(自然科学版);2005年03期
3 杨华铨,张倩文,王玉坤,杨文治;MnO_2的粉体阻抗谱测量[J];北京大学学报(自然科学版);1989年02期
4 杨洁;王月;;粉末ZnS样品的高压原位阻抗谱研究[J];吉林师范大学学报(自然科学版);2011年01期
5 严一民,陈昆刚,励肇成,徐孝和;用复数阻抗谱法对β″-Al_2O_3陶瓷的分析[J];无机材料学报;1990年02期
6 张武智;张惠珍;鹿桂花;张晋鲁;李玉强;;普通硅酸盐水泥净浆稳定期水化反应的阻抗谱研究[J];伊犁师范学院学报(自然科学版);2014年03期
7 林国美;管亮;冯新泸;;油品腐蚀性阻抗谱检测技术及仪器研究[J];中国腐蚀与防护学报;2011年04期
8 丁强;王忠义;黄岚;何建昕;张根伟;高健;万青;;便携式猪肉阻抗谱检测系统研制[J];农业工程学报;2009年12期
9 霍国燕;锂电极表面膜的组成和阻抗行为[J];河北化工;1995年04期
10 王平,陈初升,彭定坤,孟广耀;Nd掺杂的BaCeO_3的阻抗谱和电性能研究[J];功能材料;1999年05期
相关会议论文 前2条
1 董永贵;孟凡;;电阻抗谱的分段测量方法及其实验研究[A];第九届全国信息获取与处理学术会议论文集Ⅱ[C];2011年
2 王海英;吴锋;石春源;李革臣;;基于阻抗谱模型参数的检测方法设计[A];第二十九届中国控制会议论文集[C];2010年
相关硕士学位论文 前3条
1 李一倩;固体氧化物燃料电池电极的非线性阻抗谱研究[D];哈尔滨工业大学;2012年
2 王斯亮;精密生物阻抗谱测量系统及其在经络研究中的应用[D];天津大学;2008年
3 王兴枝;不同贮藏方式下黄瓜阻抗谱、近红外光谱特性的研究[D];北京林业大学;2012年
,本文编号:2154201
本文链接:https://www.wllwen.com/kejilunwen/huaxue/2154201.html