Title :
Electrical resistance tomography system based on CompactPCI for multiphase flow measurement
Author :
Xu, Cong ; Dong, Feng
Author_Institution :
Tianjin Key Lab. of Process Meas. & Control, Tianjin Univ., Tianjin, China
Abstract :
As a non-radiant and unperturbed 2D/3D boundary technique, Electrical resistance tomography (ERT) provides an effective way of monitoring and on-line measurements for multiphase fluid. To better satisfy industrial requirements, a parallel ERT system based on CompactPCI is described in this paper. The performance of this system have been tested, and the results show that the system works properly with SNR above 62dB with perfect repeatability less than 0.7%, and the data acquisition rate could reach almost 1400 frames per second under 50 kHz excitation. Static experiments have been conducted for image reconstruction and the images demonstrated good resolution relative to the actual object distribution. The parallel ERT system has provided a firm foundation for the dynamic multiphase flow measurements.
Keywords :
electric resistance measurement; flow measurement; flow visualisation; image reconstruction; image resolution; multiphase flow; tomography; compact PCI; data acquisition; dynamic multiphase flow measurement; electrical resistance tomography system; frequency 50 kHz; image reconstruction; image resolution; industrial requirement; multiphase flow measurement; multiphase fluid; nonradiant boundary technique; object distribution; online measurement; parallel ERT system; unperturbed 2D-3D boundary technique; Data acquisition; Demodulation; Field programmable gate arrays; Fluid flow measurement; Image reconstruction; Signal to noise ratio; Voltage measurement; CompactPCI; FPGA; digital demodulation; digital filter; electrical resistance tomography;
Conference_Titel :
Instrumentation and Measurement Technology Conference (I2MTC), 2011 IEEE
Conference_Location :
Binjiang
Print_ISBN :
978-1-4244-7933-7
DOI :
10.1109/IMTC.2011.5944121
