TY  - JOUR
AB  - Purpose– Circular pipelines are mostly used for pneumatic conveyance in industrial processes. For optimum and efficient production in industries that use a pipeline for conveyance, tomographic image of the transport particles is paramount. Sensing mechanism plays a vital role in process tomography. The purpose of this paper is to present a two‐dimensional (2‐D) model for sensing the characteristics of electrostatic sensors for electrical charge tomography system. The proposed model uses the finite‐element method.Design/methodology/approach– The domain is discretized into discrete shapes, called finite elements, by using a MATLAB. Each of these elements is taken as image pixels, on which the electric charges carried by conveyed particles are transformed into equations. The charges' interaction and the sensors installed around the circumference, at the sensing zone of the conveying pipeline are related by the proposed model equations. A matrix compression technique was also introduced to solve the problem of unevenly sensing characteristics of the sensors due to elements' number's concentration. The model equations were used to simulate the modeled electrostatic charge distribution carried by the particles moving in the pipeline.Findings– The simulated results show that the proposed sensors are highly sensitive to electrostatic charge at any position in the sensing zone, thereby making it a good candidate for tomographic image reconstruction.Originality/value– Tomographic imaging using finite element method is found to be more accurate and reliable compared to linear and filtered back projection method.
VL  - 33
IS  - 2
SN  - 0260-2288
DO  - 10.1108/02602281311299644
UR  - https://doi.org/10.1108/02602281311299644
AU  - Tizhe Thuku Iliya
AU  - Fua'ad Rahmat Mohd
AU  - Abdul Wahab Norhaliza
AU  - Tajdari Teimour
AU  - Amuda Yusuf Abdulrahamam
PY  - 2013
Y1  - 2013/01/01
TI  - 2‐D finite‐element modeling of electrostatic sensor for tomography system
T2  - Sensor Review
PB  - Emerald Group Publishing Limited
SP  - 104
EP  - 113
Y2  - 2024/04/24
ER  -