Wire-Mesh 16 × 16 Capacitance Sensor for Analysis of Capacitance Distribution on Cylindrical Pipe

Abstract

The wire-mesh sensor is an intrusive sensor device that uses for generating 2-dimensional (2D) images of fluid flow. Sensors made of 2 layers copper wires, transmitter, and receiver, that perpendicular each other. The wire-mesh sensor will directly to measure the value of inductance or capacitance at the crossing wire. There are 208 data measurements in 16 × 16 cylindrical wire-mesh sensors. All data measurement then processed by Python software to obtain a 2D image of the capacitance distribution. Experiment results show the inhomogeneous distribution of capacitance that occurs in the wire-mesh sensor. Three types of liquids, distilled water, tap water and salt solution, showed circular pattern of capacitance distribution, with the highest capacitance value being in the central area of the image, while at edge area has a lower capacitance value than the central area.

Analisis Pengaruh Diameter Kawat terhadap Distribusi Kapasitansi dari Wire Mesh Sensor: Studi Kasus Simulasi Sistem Deteksi Anomali pada Saluran Pembuangan Limbah Industri

“…Penerapan sistem WMS telah berhasil dikembangkan pada beberapa sistem deteksi, seperti sistem deteksi campuran minyak dengan air di dalam pipa kilang minyak lepas pantai [11], sistem deteksi termal surya pada pembangkit tenaga uap [12], dan sistem investigasi aliran multifase pada saluran pipa horizontal [13]. Selain penerapan sensor pada sistem deteksi, terdapat penerapan lainnya sebagai sistem pengukuran kuat medan listrik yang dapat mencitrakan pola persebaran medan listrik pada suatu bahan [14]. Peningkatan performansi sistem WMS juga telah dilakukan melalui analisis pengaruh parameter desain geometri sensor, seperti jarak kawat [15] dan jarak antar lapisan [16].…”

Capacitance Distribution Analysis Using Wire Mesh Sensor 16×16:

“…The system can be described as a hybrid solution between invasive local measurement of phase fraction [14] and tomographic cross-sectional imaging [15]. Moreover, the forward model of measurement using WMS in the form of capacitance distribution, has been proven to be useful in analyzing the fluid height in a pipe and represents electrical characteristics of the fluid in the pipe [16]. This is consistent with the concept of capacitance (C), which is directly proportional to relative permittivity (k) and is written in Eq.1.…”