@inproceedings{scholars8828, note = {cited By 4; Conference of 8th International Conference on Information Technology and Electrical Engineering, ICITEE 2016 ; Conference Date: 5 October 2016 Through 6 October 2016; Conference Code:126635}, year = {2017}, doi = {10.1109/ICITEED.2016.7863245}, journal = {Proceedings of 2016 8th International Conference on Information Technology and Electrical Engineering: Empowering Technology for Better Future, ICITEE 2016}, publisher = {Institute of Electrical and Electronics Engineers Inc.}, title = {Design of concave capacitance sensor for void fraction measurement in gas-liquid flow}, isbn = {9781509041398}, author = {Lim, L. G. and Tang, T. B.}, abstract = {Void fraction is an important parameter to be measured in gas-liquid flow. Several designs of two-electrodes capacitance sensor had been analyzed and optimized for void fraction measurement. The conventional two-electrode concave capacitance sensor showed high sensitivity but it was also the most affected by air-water distribution. Thus far, only two-electrodes concave design had been discussed. In this paper, the concave design is divided into two-, four-and six-electrode using finite element method. The sensitivity of the sensor, effect of air-water distribution and linearity of response are analyzed and compared. The numerical results showed that four-electrode concave sensor is more suitable than the conventional two-electrode for void fraction measurement in gas-liquid flow. {\^A}{\copyright} 2016 IEEE.}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85016086054&doi=10.1109\%2fICITEED.2016.7863245&partnerID=40&md5=1b2efc19b2257b2a24e067acf24cb384}, keywords = {Air; Capacitance; Electrodes; Finite element method; Liquids; Two phase flow; Water supply systems, Air-water; Capacitance sensors; Gas liquid flows; linearity; sensitivity, Void fraction} }