Title :
A new dual-modality ECT/ERT technique based on C4D principle
Author :
Baoliang Wang ; Zhongbao Gui ; Wuhao Tan ; Zhiyao Huang ; Haifeng Ji ; Haiqing Li
Author_Institution :
Dept. of Control Sci. & Eng., Zhejiang Univ., Hangzhou, China
Abstract :
Based on the measurement principle of Capacitively Coupled Contactless Conductivity Detection (C4D), a new dual-modality ECT/ERT technique is proposed and hence a novel dual-modality ECT/ERT system is developed. A new dual-modality ECT/ERT sensor is designed and its mathematical model is presented. Phase Sensitive Demodulation (PSD) method is applied to measure the impedance and hence obtain the capacitance for ECT mode and the resistance for ERT mode of the fluid. With the novel dual-modality ECT/ERT system, image reconstruction experiments are carried out in ECT mode and ERT mode, respectively. The preliminary experiment results verify the feasibility of the new dual-modality ECT/ERT technique.
Keywords :
capacitance measurement; capacitive sensors; demodulation; electric impedance imaging; electric resistance measurement; electrical conductivity measurement; image reconstruction; mathematical analysis; phase modulation; C4D principle; PSD method; capacitance measurement; capacitively coupled contactless conductivity detection principle; dual-modality ECT-ERT sensor technique; electrical capacitance tomography; electrical resistance tomography; impedance measurement; mathematical model; phase sensitive demodulation method; resistance measurement; Capacitance; Conductivity; Electrical resistance measurement; Electrodes; Image reconstruction; Resistance; Tomography; Capacitively Coupled Contactless Conductivity Detection (C4D); dual modality; electrical capacitance tomography (ECT); electrical resistance tomography (ERT);
Conference_Titel :
Instrumentation and Measurement Technology Conference (I2MTC), 2015 IEEE International
Conference_Location :
Pisa
DOI :
10.1109/I2MTC.2015.7151600
