Related Experiment Video
Updated: Jun 2, 2026

Microfluidic Channel-Based Soft Electrodes and Their Application in Capacitive Pressure Sensing
Published on: March 17, 2023
Design of a gap electrode capacitance array sensor based on capacitive edge effects
Zhen Song1, Xuezhen Cheng1, Zhenghao Cao2
1College of Electrical Engineering and Automation, Shandong University of Science and Technology, Qingdao 266590, China.
Abstract:
Electrical Capacitive Tomography (ECT) is a technique used to measure multiphase flow parameters based on reconstructed images of the media, where the accuracy of the reconstructed images is crucial. In this paper, a novel design of a gap electrode capacitive array sensor is proposed to mitigate the influence of edge effects in capacitive measurements and increase electrode coverage, thereby enhancing the reconstructed images' accuracy. By embedding gap electrodes into the traditional ECT sensor structure, the edge effects are effectively reduced, significantly enhancing the overall sensitivity of the sensor, optimizing the uniformity of the sensitivity field, reducing the dynamic range of sensor output, and markedly improving image quality. Experimental results demonstrate that the proposed design of the gap electrode capacitive array sensor effectively reduces reconstruction artifacts, enhances image quality, and possesses good versatility and anti-interference capability.
Related Concept Videos
MOS Capacitor
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
Design Example: Capacitance Multiplier Circuit
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.
Capacitor With A Dielectric
Dielectrics are non-conducting materials with no free or loosely bound electrons. When a dielectric is...
Equivalent Capacitance
The following strategies are adopted to calculate...
Equivalent Capacitance
Dielectric Polarization in a Capacitor

