Kumar Abhimanyu, Ganguli Souvik
Electrical and Instrumentation Engineering Department, Thapar Institute of Engineering and Technology, Patiala 147004, Punjab, India.
Rev Sci Instrum. 2020 Sep 1;91(9):095101. doi: 10.1063/5.0020689.
This paper presents a scheme for the study of dielectrics. For this purpose, fringing field is employed, which is usually considered an undesired effect. Two non-ideal capacitors are placed one beneath the other, which have a region of interlinking fringing fields. If the fringing fields are canceled out, it is called diminutive physically parallel orientation. This capacitor arrangement is placed in a Wheatstone bridge setup, so whenever a dielectric sample is placed within the main capacitor, then it creates distortion in the interlinking fringing fields. This is canceled out when the circuit is balanced, which happens at an optimum plate separation. Thus, the proposed scheme can be used to study fringing field intensity, sense the movement of a dielectric liquid, measure dielectric properties such as permittivity, study materials and biological substances, etc. This work is expected to find application in industrial sensing. Researchers will also find some interesting ideas to ponder upon.
本文提出了一种用于研究电介质的方案。为此，采用了边缘场，而边缘场通常被认为是一种不良效应。两个非理想电容器上下放置，它们有一个边缘场相互连接的区域。如果边缘场被抵消，这被称为极小物理平行取向。这种电容器装置被放置在惠斯通电桥设置中，所以每当在主电容器内放置一个电介质样品时，它就会在相互连接的边缘场中产生畸变。当电路平衡时，这种畸变会被抵消，这发生在最佳极板间距处。因此，所提出的方案可用于研究边缘场强度、感知电介质液体的运动、测量介电常数等介电特性、研究材料和生物物质等。这项工作有望在工业传感中得到应用。研究人员也会找到一些有趣的想法去思考。
