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Contactless and Simultaneous Measurement of Water and Acid Contaminations in Oil Using a Flexible Microstrip Sensor.
ACS Sensors ( IF 8.2 ) Pub Date : 2020-01-10 , DOI: 10.1021/acssensors.9b01965 Qiannan Xue 1 , Xiecheng Tang 1, 2 , Yanna Li 1 , Haitao Liu 2 , Xuexin Duan 1
ACS Sensors ( IF 8.2 ) Pub Date : 2020-01-10 , DOI: 10.1021/acssensors.9b01965 Qiannan Xue 1 , Xiecheng Tang 1, 2 , Yanna Li 1 , Haitao Liu 2 , Xuexin Duan 1
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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 chemical-sensing applications.
中文翻译：
使用柔性微带传感器进行非接触式同时测量油中的水和酸污染。
石油产品质量的评估通常涉及多个指标，其中水含量和酸值是两个主要参数。油样的复杂性和管道运输中狭窄的空间使实时监控油质变得困难。考虑到实际需求，提出了一种新型的柔性微带传感器。通过理论和实验研究和优化了微带传感器的形状和线宽。所提出的基于正方形螺旋的微带传感器在高频下具有良好的水含量检测分辨率，并且对酸的干扰较小，并且可以确定低频范围内的酸值。传感器表面被进一步钝化，以防止其与油样直接接触，以增强电化学强度，并且仍然具有良好的检测线性度和高灵敏度。在封装到柔性基板上之后，所提出的微带传感器同时实现了非接触式确定油的水含量和酸值的方法，其大小仅为几毫米，并且可以适应各种管壁形状。由于传感器的制造与CMOS兼容，因此我们希望它可以容易地应用于许多其他小型化化学传感应用。
更新日期：2020-01-10
中文翻译：
使用柔性微带传感器进行非接触式同时测量油中的水和酸污染。
石油产品质量的评估通常涉及多个指标，其中水含量和酸值是两个主要参数。油样的复杂性和管道运输中狭窄的空间使实时监控油质变得困难。考虑到实际需求，提出了一种新型的柔性微带传感器。通过理论和实验研究和优化了微带传感器的形状和线宽。所提出的基于正方形螺旋的微带传感器在高频下具有良好的水含量检测分辨率，并且对酸的干扰较小，并且可以确定低频范围内的酸值。传感器表面被进一步钝化，以防止其与油样直接接触，以增强电化学强度，并且仍然具有良好的检测线性度和高灵敏度。在封装到柔性基板上之后，所提出的微带传感器同时实现了非接触式确定油的水含量和酸值的方法，其大小仅为几毫米，并且可以适应各种管壁形状。由于传感器的制造与CMOS兼容，因此我们希望它可以容易地应用于许多其他小型化化学传感应用。
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