期刊
ACS SENSORS
卷 5, 期 1, 页码 171-179出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssensors.9b01965
关键词
microwave sensor; non-contact sensor; water content; acid value; oil quality; microstrip antenna; flexible sensor; multiple parameters
资金
- National Natural Science Foundation of China (NSFC) [61601469, 61674114, 91743110, 21861132001]
- National Key R&D Program of China [2017YFF0204604, 2018YFE0118700]
- Tianjin Applied Basic Research and Advanced Technology [17JCJQJC43600]
- 111 Project [B07014]
- Initial Scientific Research Fund of State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University [Pilq1902]
The assessment of the petroleum product quality often involves multiple indicators, among which water content and acid value are two major parameters. The complexity of an oil sample and the narrow space in pipeline transport make it difficult to monitor the oil quality in real-time. Considering the practical requirements, a new type of flexible microstrip sensor is proposed in this work. The shape and line width of the microstrip sensor are studied and optimized by theory and experiments. The proposed square spiral-based microstrip sensor has good water content detection resolution at high frequencies with less acid interference, and it can determine the acid value in the low-frequency band. The sensor surface is further passivated, protecting it from direct contact with the oil sample to enhance the electrochemical robustness, and still achieves good detection linearity and high sensitivity. After encapsulation on a flexible substrate, the proposed microstrip sensor realized the non-contact determination of the water content and acid value of oil at the same time, which is only a few millimeters in size and can conform to various tubing wall shapes. Due to the fact that the manufacture of the sensor is CMOS-compatible, we expect it to be readily applied to many other miniaturized chemicalsensing applications.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据